Topics

Topics presents a systematic approach to exploring the history of philosophical thought. Arranged by topic, this page showcases a chronological progression of definitions provided by influential philosophers, offering a unique understanding of each subject.

102 Books studied

600 BC - 1600

Mainly Western

Virtue

21 Philosophers
Virtue is a moral excellence developed through practice that enables a person to act ethically and reach their full potential.
Notes
Pythagoras (570 BC -495 BC)
"Virtue is numerical"
Explanation
Pythagoras believed that virtue is numerical because he saw the world as ordered and governed by mathematical principles. He believed that just as numbers can be used to understand the physical world, they can also be used to understand moral concepts such as virtue.
Who agrees
None
Who Disagrees
Plato: Plato believed that virtue was a transcendent and eternal ideal that could not be reduced to mere numerical calculations.

Aristotle: Aristotle also rejected the idea that virtue could be quantified, arguing instead that it was a mean between two extremes.

Socrates: Socrates emphasized the importance of practical wisdom and ethical reasoning over abstract theories and mathematical calculations.

Stoics: The Stoics believed that virtue was a matter of living in accordance with nature and reason, not of numerical calculations.
Protagoras (535 BC -475 BC)
"Virtue is knowledge, then virtue can be taught"
Explanation
Protagoras believed that virtue is knowledge because he saw the pursuit of knowledge as the key to living a good life. He believed that if individuals had the knowledge of what is right and wrong, they would be able to act accordingly and achieve virtue.
Who agrees
Plato: In his work "Meno," Plato argues that virtue is knowledge and can be taught.

Aristotle: In his "Nicomachean Ethics," Aristotle argues that virtues are habits that can be developed through education and practice.

Cicero: In his "On the Nature of the Gods," Cicero argues that virtue is a kind of knowledge and can be taught.
Who Disagrees
Epicurus: Epicurus argued that virtue cannot be taught, but is instead a natural disposition that is developed through experience.

Seneca: Seneca believed that virtue cannot be taught, but is instead developed through personal reflection and self-examination.

Thomas Aquinas: Aquinas believed that virtue is a habit acquired through repetition and practice, but that it is not solely a matter of knowledge.
Antisthenes (446 BC -366 BC)

"Virtue is an action that is performed intentionally or consciously"
Explanation
Antisthenes believed that virtue is an action that is performed intentionally or consciously. He believed that it was not enough to simply know what is right and wrong, but individuals had to actively choose to do what is right in order to achieve virtue.
Who agrees
Socrates: Socrates emphasized the importance of conscious reflection and intentional action in the pursuit of wisdom and virtue.

Diogenes: Diogenes, a disciple of Antisthenes, also believed that virtue was a matter of practical action and self-control, rather than abstract theorizing or philosophical speculation.

Who Disagrees
Plato: Plato believed that virtue was an objective and universal ideal that could be known and understood through reason, rather than a matter of individual action or intention.

Aristotle: Aristotle similarly believed that virtue was a characteristic or habit of the individual, rather than a specific action or intention.

Epicurus: Epicurus believed that virtue was a matter of living a simple and moderate life, and that it was primarily concerned with achieving happiness and tranquility, rather than performing specific intentional actions.
Callicles
(c. 484)
"Virtue consists only in the satisfaction of our own desires and those of others"
Explanation
Callicles believed that virtue consists only in the satisfaction of our own desires and those of others. He believed that individuals should pursue their desires without regard for others in order to live a fulfilling life, but also recognized that they must be able to satisfy the desires of others in order to maintain social relationships.
Who agrees
None
Who Disagrees
Socrates: Socrates believed that true virtue involves knowledge and wisdom, rather than merely satisfying one's own desires or the desires of others.

Plato: Plato believed that virtue is not simply about satisfying desires but about achieving harmony and balance within the soul, as well as acting in accordance with the principles of truth and justice.

Aristotle: Aristotle believed that virtue involves finding the mean between excess and deficiency in one's desires and actions, rather than simply satisfying them.

Epictetus: Epictetus emphasized the importance of self-control and living in accordance with nature, rather than merely seeking to satisfy one's own desires or the desires of others.

Marcus Aurelius: Marcus Aurelius believed that true virtue involves acting with reason and self-control, rather than simply seeking to satisfy one's own desires.
Plato (424 BC -347 BC)
"Virtue is the result of order and harmonious arrangement (not accidental)"
"Virtue is knowledge"
"Virtue is knowledge of good and evil"
"Virtue is the result of reason and fixed principles"
"Virtue requires temperance"
"Virtue requires regulation of wants or desire."
"Virtue is courage, temperance, justice and wisdom"
"Virtue comes from courage"
"Virtue is honorable"
"Virtue is friendship"
"Virtue is not teachable"
"Virtue is an instinct given by God to the virtuous"
Explanation
Plato had multiple definitions of virtue, each of which was tied to his larger philosophical system. For example, he believed that virtue is the result of order and harmonious arrangement because he saw the universe as being ordered and harmonious. He believed that individuals could achieve virtue by aligning themselves with this order. He also believed that virtue is knowledge of good and evil because he saw the pursuit of knowledge as essential to achieving a good life. Finally, he believed that virtue is an instinct given by God to the virtuous because he saw the pursuit of virtue as something that was innate and could not be taught.
Who agrees
Pythagoras: Pythagoras believed in the existence of an eternal and unchanging reality that can be apprehended through reason and mathematical principles, which aligns with Plato's belief that virtue is the result of reason and fixed principles.

Socrates: Socrates is the main character in many of Plato's dialogues, and his views on virtue align with those of his student,

Aristotle: Aristotle was a student of Plato and shared many of his ideas about virtue, although he would later diverge from some of them.

Speusippus: Speusippus was Plato's nephew and successor as head of the Academy, and he likely shared many of his uncle's views.

Antisthenes: Antisthenes was a student of Socrates and a contemporary of Plato, and while he had some disagreements with Plato, he shared his emphasis on the importance of virtue.

Diogenes: Diogenes was a student of Antisthenes and was known for his ascetic lifestyle and rejection of worldly possessions, but he also emphasized the importance of virtue.
Who Disagrees
Epicurus: Epicurus believed that pleasure was the highest good, rather than virtue. He also thought that virtue was not an end in itself, but rather a means of achieving happiness.

Heraclitus: Heraclitus believed that the world is in a constant state of flux and change, and therefore cannot be described by fixed principles or knowledge, which contradicts Plato's definition that virtue is the result of reason and fixed principles.

Democritus: Democritus believed that the universe is made up of atoms and that knowledge comes through sensory experience, which contradicts Plato's definition that virtue is knowledge.

Zeno: Zeno was the founder of the Stoic school of philosophy, which emphasized living in accordance with nature rather than following fixed principles of virtue.

Lucretius: Lucretius was an Epicurean philosopher who rejected the idea that virtue was necessary for a good life, and instead emphasized the pursuit of pleasure.

Seneca: While Seneca emphasized the importance of virtue, he had some disagreements with Plato's specific definitions, such as his rejection of the idea that virtue is an instinct given by God.
Diogenes (404 BC -323 BC)
"Virtue is courage"
"Virtue is the need for little"
Explanation
Diogenes believed that virtue is achieved through simplicity and a lack of attachment to material possessions, hence his definition of "virtue is the need for little." He also believed that courage is a key aspect of virtue, as it enables one to act in accordance with one's principles and ideals, even in the face of difficulty or opposition.
Who agrees
Some Cynic philosophers, who were inspired by Diogenes' lifestyle and ideas, may agree with his definition of virtue as the need for little and living simply.

Stoic philosophers like Seneca, Epictetus, and Marcus Aurelius emphasized the importance of courage as a virtue and may agree with Diogenes' definition.
Who Disagrees
Plato: may disagree with Diogenes' definition of virtue as the need for little since he believed that virtue required knowledge and order.

Aristotle: who believed in finding the middle ground and balance in all things, may not entirely agree with Diogenes' emphasis on courage as a defining virtue.
Aristotle (384 BC - 322 BC)
"Virtue is habit"
"Virtue is courage"
"Justice is the genus of virtue"
"Virtue of the rational faculty in Wisdom"
"Virtue is temperate and courage"
"Virtue is in the activity"
"Virtue is a state of charterer that makes man good"
"Virtue is a state of character concerned with choice, lying in a mean"
"Virtue is justice"
"Virtue is friendship"

Explanation
Aristotle believed that virtue is habit, and courage is an essential virtue. He viewed justice as the genus of virtue and wisdom as the virtue of the rational faculty. He believed that virtue is both temperate and courageous, and that it is found in the activity of a state of character that makes a person good. He argued that virtue is concerned with choice and lies in a mean, and that it includes justice and friendship. Overall, Aristotle's view on virtue was that it is not just a mental state, but it involves practical wisdom and habitual action, which must be practiced consistently to become a virtuous person.
Who agrees
Plato: Plato agreed with Aristotle's definitions of virtue and justice. Plato believed that virtue is a habit that one must cultivate, and that justice is the highest form of virtue. He also agreed with Aristotle's concept of the mean, which argues that virtue lies in finding a balance between extremes.

Speusippus: Speusippus was Plato's successor as head of the Academy in Athens, and he is known to have continued and developed Plato's philosophy. As such, he likely agreed with many of Aristotle's definitions as well.

Thomas Aquinas: Thomas Aquinas agreed with Aristotle's definitions of virtue, justice, and friendship. Aquinas believed that virtue is a habit that one must develop through practice, and that justice is the highest form of virtue. He also believed that friendship is an important aspect of living a virtuous life.
Who Disagrees
Heraclitus: Heraclitus disagreed with Aristotle's definition of virtue as a habit, arguing that virtue is an inherent quality that cannot be taught or learned.

Epicurus: Epicurus disagreed with Aristotle's definition of virtue as a mean, arguing that pleasure should be the ultimate goal of life rather than the pursuit of virtue.

Diogenes: Diogenes disagreed with Aristotle's emphasis on social norms and customs, arguing that true virtue comes from living in accordance with nature rather than society's expectations.

René Descartes: Descartes disagreed with Aristotle's emphasis on the importance of habit in developing virtue, arguing that reason should be the ultimate guide to moral behavior rather than habit or tradition.
Epicurus (341 BC - 279 BC)
"Virtue is harmony"
"Virtue is to live unnoticed"
"Virtue does not come from money"
"Virtue cannot be taught"
"Virtue is the precondition for pleasure"

Explanation
Epicurus believed that pleasure and happiness were the ultimate goals of human life, and that virtues were necessary to achieve them. He believed that the virtues of harmony, living unnoticed, and recognizing that virtue cannot be taught were essential to live a good life. According to Epicurus, living in harmony meant that one must seek a balance between their physical and emotional needs. Living unnoticed meant living a simple life and avoiding unnecessary attention or indulgence in material possessions. He believed that money could not buy virtue, and that virtue was necessary for true pleasure. Therefore, for Epicurus, the pursuit of virtue was not only a moral imperative, but also a means to achieve happiness and pleasure.
Who agrees
None of the philosophers explicitly agree with all of Epicurus' definitions of virtue.
Who Disagrees
Plato, Aristotle, and Cicero are known to have criticized Epicureanism, and it is unlikely that they would have agreed with Epicurus' definitions of virtue.

Seneca, Epictetus, and Marcus Aurelius were Stoics, a philosophical school that emphasized virtue as the key to a good life. They would have likely disagreed with Epicurus' definition of virtue as harmony or living unnoticed, and would have instead emphasized the importance of living in accordance with reason and virtue in order to achieve true happiness.

Thomas Aquinas was a Christian theologian who viewed virtue as a means to achieve union with God. He would have likely disagreed with Epicurus' definitions, as they do not align with Christian views of morality and the importance of virtuous living.

Francis Bacon and René Descartes were philosophers of the Enlightenment, a movement that placed great emphasis on reason and science. They would have likely disagreed with Epicurus' definition of virtue as something that cannot be taught, as they believed that knowledge and education were essential for the improvement of society.
Zeno (333 BC - 264 BC)
"Happiness is the result of life in accordance with nature (virtue)"

Explanation
According to Zeno, the goal of life was to attain happiness, which he defined as living in accordance with nature or virtue. He believed that people could achieve this state of happiness by living a life of moral and intellectual excellence, by developing self-control, and by recognizing the natural order of things. Zeno's idea of living in accordance with nature or virtue emphasized the importance of reason, self-discipline, and moral integrity. In his view, happiness was not a fleeting emotion, but a state of being that could only be achieved through living a virtuous life.
Who agrees
Cleanthes: As a Stoic philosopher and successor to Zeno, Cleanthes shared the same views on the nature of happiness. He believed that happiness comes from living in accordance with nature and fulfilling our duties to the best of our abilities.

Chrysippus: Another Stoic philosopher who followed in the footsteps of Zeno, Chrysippus agreed with the idea that virtue is the key to happiness. He argued that living in harmony with nature means living in accordance with reason and virtue.

Cicero: Although Cicero was not a Stoic philosopher, he was heavily influenced by Stoic ideas and wrote extensively about them. In his work "De Finibus Bonorum et Malorum," Cicero discusses the Stoic view that happiness comes from living in accordance with nature and fulfilling our duties.

Seneca: As a prominent Stoic philosopher and writer, Seneca believed that happiness comes from living in accordance with nature and following the virtues. He argued that the key to happiness is to live a life of reason and virtue, and to cultivate a sense of detachment from external things.
Who Disagrees
Epicurus: As we saw earlier, Epicurus believed that happiness comes from pleasure, not virtue. He argued that pleasure is the ultimate good and that we should seek it in all areas of our lives.

Aristotle: Aristotle disagreed with the Stoic view that happiness comes from living in accordance with nature. Instead, he believed that happiness comes from living a life of virtue and excellence. However, he did not view virtue as something that is natural or innate, but rather something that is acquired through education and habituation.

Plato: Plato also disagreed with the Stoic view of happiness. In his work "Phaedo," Plato argued that true happiness can only be achieved through contemplation and the pursuit of knowledge, not through living in accordance with nature. He believed that the soul is immortal and that happiness comes from fulfilling its intellectual and spiritual needs.
Chrysippus (279 BC - 206 BC)
"Virtue is living in accordance of nature"
Explanation
For Chrysippus, virtue meant living a life that was in harmony with the natural order of the universe. This idea was rooted in the Stoic philosophy that he helped to develop. Chrysippus believed that human beings had the capacity to reason and that by using reason, they could understand their place in the world and their role in the natural order. Living virtuously meant living in accordance with reason and the natural order of things. For Chrysippus, virtue was not simply a matter of following rules or adhering to a set of ethical principles, but rather it was a way of life that involved constant self-improvement and the pursuit of wisdom.
Who agrees
Zeno: Chrysippus was a follower of Zeno and shared his beliefs on ethics, so it's not surprising that Zeno agreed with the definition of virtue as living in accordance with nature.

Cleanthes: As a successor to Zeno, Cleanthes also followed the Stoic school of thought and agreed with the definition of virtue as living in accordance with nature.

Seneca: As a Stoic philosopher, Seneca shared the belief that virtue is living in accordance with nature.
Who Disagrees
Aristotle: Aristotle believed that virtues are acquired through habituation and that there are specific virtues that one should aim to develop, rather than just living in accordance with nature.

Plato: Plato believed that virtue is related to knowledge and that the pursuit of wisdom leads to the development of virtue, rather than just living in accordance with nature.

Epicurus: Epicurus believed that happiness is achieved by avoiding pain and seeking pleasure, rather than living in accordance with nature as Chrysippus claimed.
Cicero (106 BC - 43 BC)
"Virtue is the goal towards which nature guides us"
"Virtue is a harmonious disposition"
Explanation
Cicero, a Roman philosopher, believed that virtue was essential for living a good life. He believed that nature guides humans towards the goal of virtue, which he considered to be the highest good. Cicero saw virtue as a harmonious disposition, meaning that it was not just a single action or behavior, but rather a way of living that is consistent with one's beliefs and values. He believed that by living a virtuous life, one could achieve a state of inner peace and contentment, and ultimately lead a fulfilling life. Cicero was influenced by the Greek philosophers, particularly the Stoics, and his views on virtue reflect this influence.
Who agrees
Plato: In Plato's philosophy, virtue is a kind of knowledge that leads to happiness and the good life. He believed that the ultimate goal of human beings is to achieve harmony and balance within themselves and with the world around them. This idea of harmony is consistent with Cicero's definition of virtue as a harmonious disposition.

Aristotle: Aristotle believed that virtue is the result of habitual behavior that leads to a state of harmony and balance. He saw virtue as a mean between extremes and argued that virtuous action is guided by practical wisdom. His conception of virtue as a goal that nature guides us towards aligns with Cicero's definition.

Seneca: Seneca saw virtue as the highest good and the only path to true happiness. He believed that virtue is a natural disposition that is developed through practice and discipline. His conception of virtue as a goal towards which nature guides us is consistent with Cicero's definition.
Who Disagrees
Epicurus: Epicurus believed that pleasure is the highest good and that virtue is a means to achieve this end. He saw virtue as a tool to avoid pain and suffering, rather than a harmonious disposition or a goal towards which nature guides us.

Diogenes: Diogenes rejected the idea of virtue as a goal towards which nature guides us. He believed that virtue is a product of self-sufficiency, and that it can be achieved through living a simple and natural life. His philosophy emphasizes self-reliance rather than harmony with nature.

Thomas Hobbes: Hobbes believed that human beings are fundamentally selfish and competitive, and that the only way to maintain social order is through a strong central authority. His conception of human nature as inherently conflictual is at odds with Cicero's idea of virtue as a harmonious disposition.
Seneca (4 BC - 65 AD)
"Virtue is nothing except straight reason"
"Virtue is bold and lofty, which is stimulated by whatever threatens it"
"Virtue is a judgment which is stable and transparent about what is good"

Explanation
Seneca, a Roman philosopher, emphasized the importance of reason in defining virtue. He believed that virtue is nothing but straight reason, meaning that it is a rational and logical way of thinking that guides one's actions. In addition, Seneca viewed virtue as bold and lofty, something that is stimulated by whatever threatens it. This suggests that virtues require a certain level of courage and strength to uphold. Seneca also believed that virtue is a stable and transparent judgment about what is good, indicating that it requires a clear understanding of what is right and wrong. Overall, Seneca's definition of virtue highlights the importance of reason, courage, and clarity in living a virtuous life.
Who agrees
Plato: Plato believed in the inherent goodness of the soul and that it can be trained to become virtuous through reason. In his works, such as "The Republic," he emphasizes the importance of reason in achieving justice and virtue, which aligns with Seneca's definition of virtue as "nothing except straight reason."

Aristotle: Aristotle believed that virtue is a habit or disposition to act in accordance with reason. He also believed that virtues are stable and transparent in their pursuit of the good, which aligns with Seneca's definition of virtue as a judgment which is "stable and transparent about what is good."

Epictetus: Epictetus was a Stoic philosopher who believed in the importance of reason and self-control in achieving virtue. He believed that one should be bold and steadfast in the face of adversity, which aligns with Seneca's definition of virtue as "bold and lofty, which is stimulated by whatever threatens it."

Marcus Aurelius: Marcus Aurelius was a Roman emperor and Stoic philosopher who emphasized the importance of reason, self-control, and humility in achieving virtue. He believed that virtue is a stable and transparent judgment about what is good, which aligns with Seneca's definition of virtue.
Who Disagrees
Pythagoras: Pythagoras believed in the importance of mathematics and music in achieving a harmonious life. He did not emphasize reason as the sole path to virtue, which disagrees with Seneca's definition of virtue as "nothing except straight reason."

Democritus: Democritus believed in the importance of pleasure and happiness in life. He did not place as much emphasis on reason and self-control as a means to achieving virtue, which disagrees with Seneca's definition of virtue as "bold and lofty, which is stimulated by whatever threatens it."

Epicurus: Epicurus believed in the pursuit of pleasure and the avoidance of pain as the key to a happy life. He did not place much emphasis on reason or self-control as a means to achieving virtue, which disagrees with Seneca's definition of virtue as "bold and lofty, which is stimulated by whatever threatens it."
Epictetus (55 - 135)
"Virtue is serenity"

Explanation
Epictetus, a Stoic philosopher, believed that true happiness and fulfillment could be achieved through the cultivation of inner virtues. He believed that living in accordance with nature and reason was the key to achieving serenity and inner peace. For him, virtue was not just a moral ideal, but also a practical one that could be practiced and developed through consistent effort and discipline. He emphasized the importance of self-discipline, self-control, and detachment from material possessions and external circumstances. Therefore, when Epictetus defined virtue as serenity, he was essentially saying that it is a state of inner calmness and tranquility that can be attained by living a virtuous life and cultivating inner strength and resilience.
Who agrees
Marcus Aurelius: In his work "Meditations," Marcus Aurelius emphasizes the importance of maintaining inner tranquility and calmness as a fundamental aspect of living a virtuous life. He argues that virtue involves being in harmony with oneself and the universe, and that inner serenity is necessary to achieve this state.

Seneca: Although Seneca does not explicitly use the term "serenity," he does emphasize the importance of maintaining a calm and balanced state of mind in the face of adversity. He argues that virtue involves developing an inner resilience that enables one to withstand the challenges of life without being overcome by them.
Who Disagrees
Aristotle: Aristotle's view of virtue is more complex and multifaceted than Epictetus's, and includes elements such as practical wisdom, courage, and self-control. While Aristotle would likely agree that inner calmness and composure are important aspects of virtue, he would not reduce virtue to serenity alone.

Plato: Plato's view of virtue, as outlined in works such as the "Republic" and "Phaedo," emphasizes the importance of knowledge and intellectual understanding in the attainment of virtue. While Plato might agree that serenity is a desirable state of mind, he would likely argue that it is not sufficient for true virtue.
Marcus Aurelius (121 - 180)
"Virtue is constant"
"Virtue is justice"

Explanation
Marcus Aurelius believed that virtue was a constant practice in one's life, and that it required one to constantly strive for excellence. He believed that living a virtuous life was not something that could be achieved overnight, but was a lifelong pursuit. Additionally, he believed that virtue was synonymous with justice, which was not only an ethical principle but a social responsibility to treat others fairly and with respect. Overall, Marcus Aurelius believed that living a virtuous life required a constant effort towards personal growth and a commitment to treating others with kindness and fairness.
Who agrees
Plato: Plato believed that virtue is a constant attribute and is necessary for justice to exist in society. In his dialogue "The Republic," he argued that justice is achieved when every individual performs their own function and virtue is practiced consistently. Plato believed that virtues such as courage, wisdom, and justice are intertwined and must be practiced continuously to attain a virtuous life.

Aristotle: Aristotle believed that virtue is a constant habit that must be practiced consistently to be attained. He argued that virtues are habits that are formed through repeated actions, which lead to the development of a virtuous character. Aristotle believed that justice is a virtue that arises from the consistent practice of virtuous actions.

Seneca: Seneca believed that virtue is a constant state of being that is attainable through consistent practice. He argued that a virtuous life is achieved through the cultivation of wisdom, courage, and justice, which enable individuals to live in harmony with the world around them.
Who Disagrees
Epicurus: Epicurus believed that virtue is not an end in itself, but a means to achieve a happy life. He argued that happiness is achieved through the pursuit of pleasure and the avoidance of pain. Epicurus believed that justice is a social construct that is necessary for the preservation of society, but it is not a virtue in itself.

Thomas Hobbes: Hobbes believed that virtue is not a constant attribute but a product of social and political order. He argued that individuals are naturally selfish and must be constrained by social and political institutions to act virtuously. Hobbes believed that justice is a product of the social contract between individuals and the state, which is necessary for the preservation of order and stability in society.
St. Augustine (354- 430)
"Virtue is the good use of our freedom to choose"


Explanation
St. Augustine believed that virtue was rooted in the good use of our freedom to choose. As a Christian philosopher, he believed that humans had the freedom to choose between good and evil, and that choosing the good was necessary for attaining happiness and fulfilling one's purpose in life. He believed that living a virtuous life required cultivating a deep relationship with God and living in accordance with His will. Augustine saw virtue as not just a matter of individual choice, but as a necessary element of a just and harmonious society. He believed that virtuous behavior was essential for creating a peaceful and just world, and that individuals had a duty to use their freedom to promote the common good.
Who agrees
Plato: Plato believed that human beings have free will, and the proper use of that freedom is to seek knowledge and wisdom, which leads to the good life. He believed that virtue is knowledge, and through knowledge, people can choose to live virtuously. This aligns with St. Augustine's definition of virtue as the good use of our freedom to choose.

Thomas Aquinas: Aquinas believed that humans have free will, and the proper use of that freedom is to choose to follow God's will. He believed that virtues are habits that help us live according to God's will, and through living virtuously, we can attain happiness. This aligns with St. Augustine's definition of virtue as the good use of our freedom to choose.
Who Disagrees
Epicurus: Epicurus believed that virtue is merely a means to an end - that end being pleasure. He believed that we should use our freedom to choose to pursue pleasure and avoid pain, rather than following any higher moral or ethical principles. This differs from St. Augustine's definition of virtue as the good use of our freedom to choose.

Aristotle: Aristotle believed that virtues are habits that help us live a life of moderation and balance, and that the proper use of our freedom to choose is to choose the virtuous mean between excess and deficiency. He believed that virtue is not simply a matter of choosing what is good or right, but rather developing the right character and habits. This differs from St. Augustine's definition of virtue as the good use of our freedom to choose, which places more emphasis on the act of choosing itself.
Boethius(477 - 524)
"Virtue is strength against adversity"


Explanation
Boethius was a philosopher and statesman who believed that virtue is an essential component of a happy and fulfilling life. He saw virtue as a means of coping with adversity and maintaining a sense of inner strength and resilience in the face of difficult circumstances. For Boethius, virtue was not merely a passive state of being, but an active force that enabled individuals to face challenges with courage and determination. His definition of virtue emphasized the importance of inner strength and the ability to persevere through difficult times, suggesting that a virtuous person is someone who is able to maintain their composure and sense of purpose even in the face of adversity.
Who agrees
Seneca: Seneca believed that the purpose of philosophy was to teach people how to cope with adversity and overcome challenges. He believed that the virtues of courage, wisdom, and self-control were essential for achieving this goal. Thus, he agrees with Boethius' definition of virtue as "strength against adversity".

Michel de Montaigne: Montaigne believed that the purpose of philosophy was to teach people how to live well in the face of life's challenges. He believed that the virtues of courage, wisdom, and self-control were necessary for achieving this goal. Like Seneca, he agrees with Boethius' definition of virtue as "strength against adversity".
Who Disagrees
Plato: Plato believed that virtue was a form of knowledge that allowed a person to discern what was good and act accordingly. He believed that the virtues of wisdom, courage, moderation, and justice were necessary for achieving this goal. Thus, he disagrees with Boethius' definition of virtue as "strength against adversity".

Aristotle: Aristotle believed that virtue was a habit or disposition that enabled a person to act in accordance with reason. He believed that the virtues of courage, wisdom, and self-control were necessary for achieving this goal. However, he did not see virtue as simply being "strength against adversity", as Boethius did. Rather, he saw virtue as a broader concept that encompassed many aspects of human life.
Thomas Aquinas (1221 - 1274)
"Virtue is the goodness of reason"
"Virtue is a disposition to always live rightly"


Explanation
Thomas Aquinas believed that virtue was closely tied to reason, and that it was a disposition to always live rightly. According to Aquinas, the goodness of reason is what allows humans to determine what is right and wrong, and this knowledge should guide one's actions. He believed that virtues could be developed through practice and habituation, and that they were essential to living a good life. The virtues were seen as the means by which one could achieve happiness and fulfillment, and they were grounded in the idea of a natural law that governed human behavior. In this way, Aquinas's conception of virtue was tied to his broader philosophical framework and his belief in the importance of reason and natural law.
Who agrees
Plato: Plato believed that virtues such as wisdom, courage, justice, and temperance are essential for a good life. He considered these virtues to be rooted in reason and believed that living a virtuous life requires the use of reason to make good decisions. This aligns with Aquinas' definition that virtue is the goodness of reason.

Aristotle: Aristotle believed that virtue is a disposition to always act rightly, and that virtues are habits that are developed through practice and repetition. He believed that reason plays a central role in developing virtues, as it helps individuals to understand what is right and good. This is in line with Aquinas' definition that virtue is a disposition to always live rightly.

St. Augustine: St. Augustine believed that virtue is a gift from God, and that it enables individuals to live in harmony with God's will. He also believed that reason plays an important role in the development of virtues, as it helps individuals to understand God's will. This aligns with Aquinas' definition that virtue is the goodness of reason.
Who Disagrees
Epicurus: Epicurus believed that virtue is a means to achieving happiness, and that it is therefore based on pleasure. He rejected the idea that virtue is the goodness of reason, and instead believed that virtues such as prudence, justice, and courage are valuable only insofar as they contribute to an individual's happiness.
Michel de Montaigne (1533 - 1592)
"Virtue is moderation"
"Virtue is discipline"
"Virtue is the result of adversary, struggle and difficulty"


Explanation
Michel de Montaigne believed that virtue was achievable through moderation, discipline, and perseverance in the face of adversity. He felt that living a virtuous life required restraint and a balanced approach to all things. For Montaigne, true virtue was not something that could be easily attained, but rather a result of a continuous struggle and the constant pursuit of excellence. He believed that only through discipline and a willingness to face difficulty and overcome adversity could one achieve true virtue. His understanding of virtue was deeply influenced by his own experiences and struggles, as well as his studies of ancient philosophy, particularly that of the Stoics.
Who agrees
Socrates: Socrates' philosophy emphasized the importance of self-examination and the pursuit of wisdom. He believed that living a virtuous life requires one to constantly question and challenge their beliefs, which aligns with Montaigne's definition of virtue as the result of adversity, struggle, and difficulty.

Seneca: Seneca believed that moderation and self-control were essential to living a virtuous life. He emphasized the importance of mastering one's emotions and desires, which aligns with Montaigne's definition of virtue as discipline.

Epictetus: Epictetus was a stoic philosopher who emphasized the importance of living in accordance with reason and nature. He believed that living a virtuous life required discipline and self-control, which aligns with Montaigne's definition of virtue as discipline.
Who Disagrees
Aristotle: Aristotle believed that virtue is the mean between excess and deficiency, rather than simply moderation. He argued that there are specific virtues that must be cultivated in order to live a virtuous life, such as courage, justice, and wisdom, which do not necessarily align with Montaigne's definition of virtue as moderation.

Plato: Plato believed that virtue is knowledge, specifically knowledge of the Good. He argued that living a virtuous life required not just moderation, but also the pursuit of wisdom and knowledge, which differs from Montaigne's definition of virtue.

Thomas Aquinas: Aquinas believed that virtue is a habit that is formed through repeated acts of virtuous behavior, rather than simply the result of discipline or moderation. He also believed that virtue is closely tied to the pursuit of the ultimate good, which differs from Montaigne's definition of virtue as moderation.
Francis Bacon (1561 - 1626)
"Virtue is reverence for himself"
"Virtue is the result of adversity"


Explanation
Francis Bacon's views on virtue are rather brief, but he did express two important thoughts. Firstly, he stated that virtue is "reverence for himself," which suggests that individuals must have respect for themselves in order to act virtuously. In other words, one must recognize the value of oneself as a moral being in order to live a virtuous life. Secondly, he believed that adversity is necessary for the development of virtue, as he stated that virtue is "the result of adversity." This implies that overcoming challenges and difficult circumstances can help individuals develop moral strength and character.
Who agrees
Seneca: Seneca, in his writings, emphasizes the importance of self-reverence and moral virtue. He believed that the key to a good life is to live in accordance with nature and to develop moral virtue. This aligns with Francis Bacon's definition that "virtue is reverence for himself."

Michel de Montaigne: Montaigne, in his essays, emphasizes the importance of adversity in developing moral character. He believed that the trials and tribulations of life are what enable individuals to cultivate virtue. This aligns with Francis Bacon's definition that "virtue is the result of adversity."

Thomas Hobbes: Hobbes believed that individuals are naturally selfish and that the only way to create a peaceful society is through a social contract. He believed that individuals must suppress their natural desires and act in accordance with the laws and customs of society. This aligns with Francis Bacon's definition that "virtue is reverence for himself."
Who Disagrees
Plato: Plato believed that virtue is an objective and universal quality that exists independently of individuals. He believed that individuals must strive to embody this ideal form of virtue, which is rooted in reason and wisdom. This differs from Francis Bacon's definition that virtue is a subjective quality that is rooted in an individual's self-reverence or experience of adversity.

Aristotle: Aristotle believed that virtue is a habit or disposition that is developed through practice and repetition. He believed that individuals must strive to find a balance between excess and deficiency in their behavior. This differs from Francis Bacon's definition that virtue is rooted in an individual's self-reverence or experience of adversity.

René Descartes: Descartes believed that knowledge is the key to virtue. He believed that individuals must use reason and skepticism to doubt their own beliefs and seek the truth. This differs from Francis Bacon's definition that virtue is rooted in an individual's self-reverence or experience of adversity.
Thomas Hobbes (1588 - 1679)
"Virtue is the result of comparison and eminence"
Explanation
Thomas Hobbes had a unique perspective on virtue. He believed that virtue was not an inherent quality within humans, but rather something that arises from social comparison and the desire for eminence. According to Hobbes, individuals seek to elevate their status and achieve superiority over others in society. This desire for superiority leads to the development of virtues such as courage, wisdom, and justice. In Hobbes' view, virtue is not a moral imperative or a divine attribute, but rather a means to secure one's place in society and attain personal success. Hobbes' focus on social comparison and personal ambition as the driving forces behind virtue set him apart from other philosophers who viewed virtue as an essential quality for leading a good and fulfilling life.
Who agrees
Francis Bacon: Bacon was a contemporary of Hobbes and shared his view that virtue is a relative and comparative concept. He argued that virtue is a means to an end, namely, the attainment of power and status.

René Descartes: Descartes also believed that virtue is a relative and comparative concept. He argued that the true measure of virtue is not the performance of individual actions, but the ability to act consistently in accordance with reason.
Who Disagrees
Aristotle: Aristotle believed that virtue is an absolute concept that can be attained through the cultivation of moral character. He argued that virtue is a habit that is acquired through practice, and that it is not relative to individual status or circumstances.

Plato: Plato believed that virtue is an objective and absolute standard that is independent of individual opinions or circumstances. He argued that virtue is a form of knowledge that can be attained through the contemplation of eternal forms.
Pascal (1601 - 1658)
"Virtue is the link of all perfections, the center of all the felicities."
Explanation
Blaise Pascal believed that virtue was the link of all perfections and the center of all felicities. He saw virtue as a central concept in human life that connected individuals to perfection and happiness. Pascal was a devout Christian and believed that virtue was rooted in the love of God and the desire to follow his will. He believed that living a virtuous life required self-discipline, self-sacrifice, and a willingness to put others before oneself. For Pascal, virtue was not just a personal attribute but a way of living that could bring individuals closer to God and to each other. He saw virtue as a key to a fulfilling life and believed that its pursuit was essential for both individual and societal well-being.
Who agrees
St. Augustine: Augustine was a Christian philosopher who believed that virtue was essential for leading a good life. He believed that the ultimate goal of human life was to attain happiness, and that happiness could only be achieved through a virtuous life. Augustine's views on the importance of virtue in achieving happiness are in line with Pascal's definition.

Thomas Aquinas: Aquinas was a Christian theologian who believed that the ultimate goal of human life was to achieve eternal happiness with God. He argued that the way to achieve this goal was to live a virtuous life, and that virtues such as courage, justice, and prudence were essential for achieving this end. Aquinas's views on the importance of virtue in achieving eternal happiness are consistent with Pascal's definition.

René Descartes: Descartes was a French philosopher who believed that the key to happiness was the pursuit of knowledge and truth. He argued that virtue was necessary for achieving this end, as it allowed individuals to make the right decisions and pursue the right goals. Descartes's views on the importance of virtue in achieving knowledge and truth are in agreement with Pascal's definition.
Who Disagrees
Epicurus: Epicurus was an ancient Greek philosopher who believed that the ultimate goal of human life was to achieve happiness through the pursuit of pleasure. He argued that virtue was merely a means to this end, and that it was only valuable insofar as it contributed to an individual's pleasure. Epicurus's views on the value of virtue are not consistent with Pascal's definition, as he did not see virtue as an end in itself.

Aristotle: Aristotle was a Greek philosopher who believed that the ultimate goal of human life was to achieve eudaimonia, a state of flourishing and well-being. He argued that virtue was essential for achieving this end, but he did not see it as the center of all perfections. Instead, Aristotle saw virtue as one of several components of eudaimonia, along with factors such as good health, wealth, and social status. Aristotle's views on the importance of virtue are similar to Pascal's, but his definition of eudaimonia is broader than Pascal's definition of felicity.

Thomas Hobbes: Hobbes was an English philosopher who believed that the ultimate goal of human life was to avoid suffering and attain a state of relative peace and security. He argued that individuals were naturally selfish and competitive, and that they needed to be governed by a strong authority in order to achieve this end. Hobbes did not see virtue as the center of all perfections or the link between them, as he believed that individuals were motivated primarily by self-interest rather than moral principles. Hobbes's views on human nature and the importance of virtue are not consistent with Pascal's definition.

Simplify
Conclusion
The philosophers had differing opinions on the definition of virtue, with some focusing on the intellectual aspect of virtue while others focused on the practical aspect. However, they all agreed that virtue is important for leading a fulfilling life and that it is a characteristic that can be developed through practice and/or instruction.

Happiness

19 Philosophers
Happiness is the state of flourishing or living well, characterized by the pursuit of intrinsic goods, moral virtue, and the fulfillment of one's potential.
Notes
Pythagoras (570 BC -495 BC)
"Happiness is Harmony"

Explanation
Pythagoras believed that happiness was the result of achieving harmony, which he saw as the ultimate goal of life. He believed that everything in the universe was based on mathematical relationships and that by understanding and living in harmony with these relationships, humans could achieve happiness and fulfillment. For Pythagoras, the key to achieving harmony was through the cultivation of virtues such as wisdom, courage, temperance, and justice. He believed that by living in accordance with these virtues, individuals could find inner peace and happiness, and create a more harmonious society. His philosophy influenced many other thinkers and had a lasting impact on Western philosophy and mathematics.
Who agrees
Heraclitus: Heraclitus believed that the universe is in a constant state of change, but this change is not chaotic, but rather it follows a cosmic harmony. This idea is similar to Pythagoras' belief that the universe is governed by mathematical harmonies.

Plato: Plato believed in the existence of an objective reality beyond the material world, which can be understood through reason and mathematics. He believed that the harmony of the soul can be achieved through the contemplation of these abstract truths.

Aristotle: Aristotle agreed with Pythagoras' belief that the universe is governed by mathematical principles, and he believed that the study of mathematics and science is necessary for achieving happiness and harmony in life.

Thomas Aquinas: As a Christian philosopher, Aquinas believed that God created the universe in a harmonious way, and that humans can achieve happiness by aligning themselves with this divine harmony.
Who Disagrees
Democritus: Democritus believed that the universe is made up of atoms and void, and that there is no inherent harmony or order in the universe. He believed that happiness comes from living a virtuous life and experiencing pleasure, rather than from achieving harmony.

Epicurus: Epicurus believed that happiness comes from the absence of pain and the satisfaction of basic needs and desires, rather than from achieving harmony.

Diogenes: Diogenes believed that happiness comes from living a simple and self-sufficient life, rather than from achieving harmony.
Heraclitus (535 BC -475 BC)
"Happiness is not pleasure"
Explanation
Heraclitus believed that happiness is not found in pleasure, but rather in a sense of purpose or meaning in life. He emphasized the idea of change and the impermanence of things, arguing that one cannot find lasting happiness in material possessions or fleeting pleasures. Instead, he believed that true happiness is achieved through a deeper understanding of the world and our place in it, and by living in accordance with nature and the divine order of the universe. In this way, Heraclitus saw happiness as a state of being rather than a temporary feeling or emotion.
Who agrees
Socrates: Socrates believed that pleasure was not a good indicator of happiness, as it could lead to harmful behavior and ultimately to unhappiness. He believed that living a virtuous life and pursuing knowledge and wisdom were the keys to true happiness, which aligns with Heraclitus' definition.

Plato: Plato's philosophy emphasized the pursuit of knowledge and virtue as the path to true happiness, rather than pleasure or material wealth. This is consistent with Heraclitus' view that happiness is not found in pleasure.

Aristotle: Aristotle believed that happiness is the ultimate goal of human life, but he did not equate happiness with pleasure. Instead, he saw happiness as a state of flourishing or eudaimonia that is achieved through living a virtuous and meaningful life. This aligns with Heraclitus' definition that happiness is not pleasure.
Who Disagrees
Epicurus: Epicurus believed that pleasure was the highest good and the key to happiness. He argued that pleasure was not merely physical gratification but also included mental satisfaction and peace of mind. This contradicts Heraclitus' definition that happiness is not pleasure.

Seneca: Seneca believed that true happiness comes from living a virtuous life and fulfilling one's potential, but he did not reject pleasure entirely. He argued that pleasure could be enjoyed in moderation as long as it did not interfere with one's pursuit of virtue. This differs from Heraclitus' view that happiness is not pleasure.
Aristippos (435 BC -356 BC)
"Happiness is pleasure"
Explanation
Aristippos, a disciple of Socrates, held the view that happiness lies in pleasure. He believed that pleasure was the ultimate goal of life and that it could be achieved through the satisfaction of physical desires. Aristippos believed that pleasure was the only good, and pain was the only evil. However, he also believed that pleasure should be pursued in moderation and not at the expense of others. Aristippos argued that there were different types of pleasure and that some were more valuable than others. He believed that the pursuit of intellectual pleasure was the highest form of pleasure and that it could lead to a more fulfilling life.
Who agrees
Epicurus: Epicurus believed that the ultimate goal of life was to attain pleasure and avoid pain. However, he distinguished between different types of pleasure, arguing that some pleasures were more valuable than others. He believed that the highest form of pleasure was a state of tranquility and freedom from fear and mental disturbance, which he called ataraxia.

Michel de Montaigne: Montaigne, also believed that pleasure was the ultimate goal of life. He believed that happiness could be achieved through the pursuit of pleasure in moderation, rather than through the avoidance of pain.

Francis Bacon: Bacon, believed that pleasure was the highest good, and that happiness could be achieved through the enjoyment of sensual pleasures, as well as through intellectual pursuits.
Who Disagrees
Plato: Plato, believed that pleasure was not the ultimate goal of life. He argued that there were higher forms of happiness that could only be attained through the pursuit of truth and the cultivation of virtues such as courage, wisdom, and justice.

Aristotle: Aristotle, also rejected Aristippos' definition of happiness as pleasure. He believed that happiness was the result of living a virtuous life, which included the pursuit of intellectual and moral excellence.

St. Augustine: Augustine, rejected Aristippos' definition of happiness as pleasure on the grounds that it was too worldly and ephemeral. He believed that true happiness could only be found in a spiritual union with God, rather than in the pursuit of earthly pleasures.

Thomas Aquinas: Aquinas, a medieval Christian philosopher, also rejected Aristippos' definition of happiness as pleasure. He believed that true happiness could only be found in a life devoted to the love of God and the pursuit of moral excellence, rather than in the pursuit of sensual pleasures.

René Descartes: Descartes, rejected Aristippos' definition of happiness as pleasure on the grounds that it was too subjective and unreliable. He believed that true happiness could only be found in the pursuit of knowledge and the cultivation of reason.
Plato (424 BC -347 BC)
"Happiness is the result of knowing what is good and evil"
"Happiness is found by a wise mind in the right usage of the things of life"
"Happiness comes from the right usage of your goods (money, food, art)"
"Happiness comes from the satisfaction of your basic desires"
"Happiness comes from experiencing no gild"
"Happiness comes by acting with temperance and justice"
"Happiness in choosing the mean and avoiding the extremes on either side"
"Happiness is in faith"
Explanation
Plato believed that true happiness was not simply a result of temporary pleasure or material possessions. He thought that true happiness could only be achieved by a person who knows what is good and evil. According to Plato, only those who have true knowledge and understanding of the nature of reality, including the ultimate Good, can experience true happiness. He believed that happiness comes from the right use of our possessions, which means that we should use our material goods in a virtuous and moderate way. Plato also believed that happiness could be found by choosing the mean and avoiding extremes, as well as by acting with temperance and justice. Finally, Plato saw faith as an important component of happiness, as it provides a sense of purpose and meaning to one's life.
Who agrees
Aristotle: Aristotle, believed that happiness (eudaimonia) was the ultimate goal of human life and could be achieved through a life of virtue, which involves the knowledge of good and evil. He wrote extensively on ethics and believed that the right use of reason and knowledge of the virtues could lead to a life of happiness.

Cicero: Cicero, a Roman philosopher, was heavily influenced by Plato's philosophy and believed that happiness was the result of knowing and pursuing what is good and just. He believed that virtue and wisdom were essential to achieving happiness and wrote extensively on the subject.

St. Augustine: St. Augustine was a Christian philosopher who was greatly influenced by Plato's philosophy. He believed that true happiness could only be found in God and that the pursuit of earthly pleasures was ultimately unsatisfying. He believed that the knowledge of good and evil was essential to achieving happiness, and that the only way to achieve true happiness was through faith in God.
Who Disagrees
Epicurus: Epicurus believed that happiness came from the absence of pain and anxiety, rather than the pursuit of knowledge or virtue. He believed that pleasure was the ultimate goal of life, but that it had to be pursued in a moderate and restrained way, so as not to lead to pain or suffering.

Diogenes: Diogenes was a Cynic philosopher who rejected traditional notions of happiness and believed that the pursuit of wealth, fame, or social status was misguided. He believed that true happiness could only be found in a life of simplicity and self-sufficiency, free from material possessions or worldly attachments.

Hobbes: Hobbes believed that happiness was the pursuit of one's own self-interest, and that the purpose of life was to maximize pleasure and avoid pain. He believed that the pursuit of knowledge or virtue was ultimately futile, and that the only way to achieve happiness was through the pursuit of one's own desires and interests.
Diogenes (404 BC -323 BC)
"Happiness does not comes from your possessions"
"Happiness lies in the acceptance of the invulnerability to fortune"
Explanation
Diogenes, a Cynic philosopher, believed that true happiness comes from within, not from external possessions or circumstances. He believed that material possessions, such as wealth, fame, or power, could not bring lasting happiness or fulfillment. Instead, he emphasized the importance of self-sufficiency and living a simple, modest life. He taught that happiness lies in accepting the natural vulnerability to fortune, recognizing that life is unpredictable and impermanent. By accepting this reality and living a life of virtue and simplicity, one could achieve true happiness and contentment. Diogenes rejected conventional social norms and conventions, advocating for a life of freedom and self-determination.
Who agrees
Aristotle: Aristotle, believed that happiness does not come from external goods, but rather it is an internal state of being. Aristotle argues in his Nicomachean Ethics that happiness is achieved through virtuous action and contemplation, and that material possessions or wealth do not necessarily lead to happiness. This is similar to Diogenes' belief that happiness does not come from possessions.

Epictetus: Epictetus, a Stoic philosopher, believed that happiness comes from accepting the things that are outside of our control and focusing on our own thoughts and actions. He taught that we should focus on our own virtues and avoid being affected by external events, just like Diogenes' belief that happiness lies in the acceptance of invulnerability to fortune.
Who Disagrees
Aristotle: Although Aristotle agrees with Diogenes that happiness does not come from possessions, he disagrees with the idea that happiness lies in the acceptance of invulnerability to fortune. Aristotle believed that happiness requires a certain degree of external goods, such as good health, wealth, and friendships, as they contribute to a virtuous life.

Plato: Plato, Diogenes' contemporary, believed that happiness comes from the pursuit of truth and knowledge, and that material possessions are not necessary for happiness. However, unlike Diogenes, Plato believed that happiness is a state of mind that can be achieved through the cultivation of reason and virtue, rather than the acceptance of invulnerability to fortune.
Crates (365 BC -285 BC)
"Happiness is not to be judged by predominance of pleasure"
Explanation
Crates, a Greek philosopher, believed that happiness was not to be judged by the predominance of pleasure. He rejected the hedonistic notion that happiness can be achieved by seeking pleasure and emphasized the importance of self-control and discipline. According to Crates, true happiness comes from living a virtuous life, which involves cultivating moral and intellectual virtues such as wisdom, courage, temperance, and justice. By exercising self-control and disciplining oneself, one can achieve a state of inner harmony and tranquility, which is the ultimate source of happiness. Crates believed that material possessions and external circumstances are irrelevant to true happiness, and that one can be happy even in adverse conditions by adopting a philosophical way of life.
Who agrees
Socrates: Socrates believed that happiness could not be measured by material wealth or pleasure, but rather through the pursuit of virtue and knowledge. He believed that the pursuit of wisdom and truth would ultimately lead to true happiness, rather than the pursuit of pleasure or external goods. This aligns with Crates' definition, as it emphasizes that happiness is not to be judged by the predominance of pleasure.

Plato: Plato believed that true happiness could only be achieved through the pursuit of the Good, which he saw as the ultimate reality. He argued that pleasure was not the same as happiness, and that true happiness could only be found through the pursuit of wisdom, truth, and justice. This aligns with Crates' definition as it emphasizes that happiness is not to be judged by the predominance of pleasure.

Aristotle: Aristotle believed that happiness was the ultimate goal of human life, but that it could not be achieved through the pursuit of pleasure or external goods alone. He argued that true happiness could only be achieved through the pursuit of virtue and the development of moral character. This aligns with Crates' definition, as it emphasizes that happiness is not to be judged by the predominance of pleasure.
Who Disagrees
Epicurus: Epicurus believed that happiness was the ultimate goal of human life, and that it could be achieved through the pursuit of pleasure. He argued that pleasure was the only intrinsic good and that it should be pursued in moderation. This contrasts with Crates' definition, as it suggests that happiness can be judged by the predominance of pleasure.

Aristippus: Aristippus believed that happiness could be achieved through the pursuit of pleasure and the avoidance of pain. He argued that pleasure was the only intrinsic good and that it should be pursued without moderation. This contrasts with Crates' definition, as it suggests that happiness can be judged by the predominance of pleasure.

St. Augustine: St. Augustine believed that true happiness could only be achieved through the pursuit of God and the eternal truths of Christianity. He argued that pleasure and material wealth were transient and ultimately unsatisfying, and that true happiness could only be found through the pursuit of spiritual fulfillment. While St. Augustine did not explicitly disagree with Crates' definition, his emphasis on the pursuit of God and spiritual fulfillment suggests that he would not necessarily agree with Crates' view that happiness is not to be judged by the predominance of pleasure.
Hegasias (c. 290 BC)
"Happiness is not possible"
Explanation
Hegasias was a Greek philosopher known for his pessimistic outlook on life. He believed that happiness was not possible because life is inherently filled with suffering, pain, and disappointment. Hegasias was heavily influenced by the philosophy of Cyrenaicism, which emphasized the importance of pleasure and happiness. However, he rejected the Cyrenaic belief that pleasure was the ultimate goal of life, and instead argued that the pursuit of pleasure was ultimately futile and could never lead to lasting happiness. For Hegasias, the only way to find peace and contentment in life was to accept the inherent misery of existence and learn to live with it. His philosophy reflects a deeply cynical and fatalistic worldview, which stands in contrast to more optimistic schools of thought like Epicureanism and Stoicism.
Who agrees
None
Who Disagrees
Aristotle: Aristotle believed that happiness is the ultimate goal of human existence and that it is achievable through the cultivation of virtues and the pursuit of intellectual and moral excellence. He argued that happiness is not just a momentary experience of pleasure, but a state of being that results from living a virtuous life. Aristotle disagreed with Hegasias' belief that happiness is not possible.

Epicurus: Epicurus believed that happiness is the highest good and that it is achievable through the avoidance of pain and the cultivation of tranquility. He argued that happiness is possible, but it requires a simple and modest life, free from the distractions of wealth, fame, and power. Epicurus disagreed with Hegasias' belief that happiness is not possible.
Aristotle (384 BC - 322 BC)
"Happiness is a life lived in accordance with virtue"
"Happiness is not pleasure"
"Happiness is self-sufficient"
"Happiness needs a pre-condition"
"Happiness is not the result of external goods"
"Happiness is the result of keeping the acquisition of external goods within moderate limits"
"Happiness is the end of greatest goodness"
"Good fortune is not the same thing as happiness"
"Happiness is an activity"
"Happiness is an activity that is better when shared"
Explanation
Aristotle believed that happiness is not just a momentary feeling of pleasure, but rather a state of being that is achieved by living a life in accordance with virtue. In his view, happiness is not something that can be achieved through external goods, such as money or fame, but rather through the development of good habits and character. He also believed that happiness is a self-sufficient state, meaning that it is not dependent on external circumstances.

Aristotle believed that happiness requires a pre-condition, which is the development of a virtuous character. He emphasized that the acquisition of external goods, such as wealth and power, should be kept within moderate limits in order to maintain happiness.

Aristotle viewed happiness as the end of greatest goodness, as it is the ultimate goal of human existence. He also recognized that good fortune is not the same thing as happiness, as it is dependent on external circumstances that can change at any time.

In Aristotle's view, happiness is not a passive state, but rather an activity that requires effort and engagement. He believed that happiness is an activity that is better when shared, as human beings are social creatures and derive happiness from their relationships with others.
Who agrees
Plato: Plato agrees with Aristotle's definition of happiness as a life lived in accordance with virtue. In his work "Republic," Plato argues that happiness can only be achieved through a life of justice and wisdom.

Epictetus: Epictetus, a Stoic philosopher, agrees with Aristotle's definition that happiness is not pleasure. Epictetus believed that happiness comes from living a life of virtue, even if that means enduring pain and hardship.

Marcus Aurelius: Marcus Aurelius, another Stoic philosopher, agrees with Aristotle's definition that happiness is self-sufficient. In his work "Meditations," Marcus Aurelius emphasizes the importance of finding happiness within oneself and not relying on external factors.
Who Disagrees
Epicurus: Epicurus disagrees with Aristotle's definition that happiness needs a pre-condition. Epicurus believed that happiness is the ultimate goal of human life and can be achieved through the pursuit of pleasure.

Seneca: Seneca disagrees with Aristotle's definition that happiness is not the result of external goods. Seneca believed that external goods, such as wealth and power, can contribute to happiness, but only if they are used in moderation and not pursued excessively.

Francis Bacon: Bacon disagrees with Aristotle's definition that happiness is the result of keeping the acquisition of external goods within moderate limits. Bacon believed that acquiring wealth and power is essential for achieving happiness and success in life.

Thomas Hobbes: Hobbes disagrees with Aristotle's definition that happiness is an activity. Hobbes believed that happiness is simply the absence of pain and the presence of pleasure, and that it can be achieved through the pursuit of individual desires and interests.
Epicurus (341 BC - 279 BC)
"Happiness is only possible with friends"
Explanation
Epicurus believed that happiness is only possible with friends. While he acknowledged that personal pleasure is important, he viewed the companionship of friends as essential to achieving happiness. Epicurus believed that true friendship is rooted in a shared commitment to virtue, reason, and mutual respect. For Epicurus, friendship provides a source of security, support, and joy that cannot be found in material possessions or fleeting pleasures. By cultivating meaningful relationships with others, Epicurus believed that individuals can find lasting happiness and fulfillment in life.
Who agrees
Aristotle: Aristotle agreed with Epicurus that friendships are necessary for human flourishing and that true friends should wish well for each other. In his Nicomachean Ethics, Aristotle states that "without friends, no one would choose to live, though he had all other goods." Aristotle believed that friendship is an essential part of a virtuous life and that it contributes to a person's overall happiness.

Cicero: Cicero, a Roman philosopher, also believed in the importance of friendship and its contribution to happiness. In his essay "On Friendship," Cicero writes that "Friendship is nothing else than an accord in all things, human and divine, conjoined with mutual goodwill and affection." Cicero believed that true friends are rare and that one should cherish and cultivate these relationships in order to live a happy life.

Michel de Montaigne: Montaigne, a French philosopher and essayist, also agreed with Epicurus' definition of happiness. In his essay "Of Friendship," Montaigne writes that "the greatest thing in the world is to know how to belong to oneself." He believed that true friendship involves a mutual understanding and acceptance of each other's individuality and that it contributes to a person's overall happiness.
Who Disagrees
Aristotle: While Aristotle believed in the importance of friendship, he did not believe that it was necessary for happiness. In his Nicomachean Ethics, Aristotle argues that happiness is the ultimate goal of human life and that it can be achieved through the cultivation of virtues such as courage, wisdom, and justice. While Aristotle believed that friendships contribute to a person's overall happiness, he did not believe that they were necessary for it.

Seneca: Seneca, a Roman philosopher and statesman, also disagreed with Epicurus' definition of happiness. In his essay "On the Happy Life," Seneca argues that happiness comes from within and that it is not dependent on external factors such as friendships. He believed that happiness can be achieved through the cultivation of virtues such as wisdom, courage, and justice, and that one should not depend on external factors for their happiness.

René Descartes: Descartes, a French philosopher and mathematician, also disagreed with Epicurus' definition of happiness. In his Meditations on First Philosophy, Descartes argues that happiness comes from within and that it is not dependent on external factors such as friendships or material possessions. He believed that happiness can be achieved through the cultivation of a clear and distinct understanding of oneself and the world around them.
Zeno (333 BC - 264 BC)
"Happiness is the result of life in accordance with nature (virtue)"
Explanation
Zeno, the founder of Stoicism, believed that happiness is the result of life in accordance with nature, which is synonymous with living a life of virtue. For Zeno, living in accordance with nature means living in harmony with the natural world and with oneself. This involves cultivating the virtues of wisdom, courage, justice, and self-control, which enable us to live a fulfilling and meaningful life. According to Zeno, happiness is not dependent on external circumstances, such as wealth or status, but rather on our internal state of mind and our ability to live in accordance with nature. By embracing the Stoic virtues and living in harmony with nature, we can achieve a state of inner tranquility and contentment that is the true source of happiness.
Who agrees
Cleanthes: As a disciple of Zeno, Cleanthes upheld the Stoic belief in living in accordance with nature (virtue) as the path to happiness.

Epictetus: As a Stoic philosopher, Epictetus also believed that happiness is achieved through living in accordance with nature (virtue) and accepting what is outside of our control.
Who Disagrees
Aristotle: Aristotle believed that happiness is achieved through the pursuit of eudaimonia, which means living a life of excellence and virtue. However, he did not believe in living in accordance with nature as a requirement for happiness.

Epicurus: Epicurus rejected the Stoic philosophy of living in accordance with nature and instead believed that happiness is achieved through the pursuit of pleasure and the avoidance of pain. Therefore, he disagreed with Zeno's definition of happiness.
Cicero (106 BC - 43 BC)
"A good friendship brings happiness to life"
"A happy life is freedom from care"
"Happiness in old age is found in memory"
"Happy is he who lives in the conscious anticipation of an honest and enduring name"
Explanation
Cicero believed that happiness could be attained through different means, as reflected in his various definitions. He believed that a good friendship brings happiness to life, highlighting the importance of social connections. He also believed that a happy life is freedom from care, emphasizing the importance of living without worries or anxieties. Cicero believed that happiness in old age is found in memory, suggesting that reflecting on one's life experiences and memories can bring joy in later years. Lastly, he believed that happiness is also found in the conscious anticipation of an honest and enduring name, implying that a life well-lived and characterized by honor and integrity can bring a sense of fulfillment and happiness.
Who agrees
Seneca: Seneca was a Roman philosopher and statesman who believed in the importance of friendship as a source of happiness. He wrote extensively on the topic of friendship and believed that good friendships bring happiness to life. Seneca's beliefs align with Cicero's definition that "a good friendship brings happiness to life."

Epicurus: Epicurus was a Greek philosopher who believed that happiness is the ultimate goal of life. He believed that happiness comes from living a life free from pain and worry. Epicurus' view aligns with Cicero's definition that "a happy life is freedom from care."

Aristotle: Aristotle was a Greek philosopher who believed that happiness is the ultimate goal of human life. He argued that happiness comes from living a life of virtue, where one uses reason to make decisions and pursue excellence. Aristotle's view aligns with Cicero's definition that "happy is he who lives in the conscious anticipation of an honest and enduring name."
Who Disagrees
Plato: Plato was a Greek philosopher who believed in the pursuit of knowledge as the ultimate goal of life. He believed that happiness comes from achieving knowledge of the highest forms of reality, rather than through external pleasures or good relationships. Plato's view contradicts Cicero's definition that "a good friendship brings happiness to life."

Augustine of Hippo: Augustine of Hippo was a Christian philosopher who believed that happiness comes from a relationship with God. He believed that happiness could not be found in earthly pleasures, but only in the eternal and unchanging love of God. Augustine's view contradicts Cicero's definition that "happiness in old age is found in memory."

Thomas Aquinas: Thomas Aquinas was a Christian theologian and philosopher who believed that happiness is achieved through a life of virtue and good deeds. He believed that true happiness could only be found in the afterlife, where one could be united with God. Aquinas' view contradicts Cicero's definition that "happy is he who lives in the conscious anticipation of an honest and enduring name."
Lucretius (99 BC - 55 BC)
"Happiness is found in not fearing death"
Explanation
Lucretius believed that happiness is found in not fearing death. He argued that death should not be feared because it is a natural part of life and is inevitable. Instead, one should focus on enjoying the present moment and making the most of the time they have. By accepting the reality of death and not fearing it, one can experience a sense of peace and freedom that leads to true happiness. Lucretius also believed that happiness is found in living a life of moderation, free from the excesses of pleasure and pain, and in pursuing knowledge and understanding of the natural world.
Who agrees
Epicurus: Epicurus believed that death was nothing to fear because it meant the end of all pain and suffering. He argued that we should focus on enjoying life while we have it, rather than worrying about what happens after we die. This aligns with Lucretius' definition of happiness as found in not fearing death.

Seneca: Seneca believed that death was a natural part of life and that we should accept it with equanimity. He argued that it is our fear of death that causes us the most suffering, not death itself. This is consistent with Lucretius' definition of happiness as found in not fearing death.
Who Disagrees
Plato: Plato believed in the immortality of the soul and that the body was merely a temporary vessel for the soul. He argued that the goal of life was to prepare the soul for the afterlife, not to enjoy this life. This conflicts with Lucretius' definition of happiness as found in not fearing death.

Aristotle: Aristotle believed that death was a natural part of life, but he did not see it as something to be embraced or celebrated. He believed that we should strive for a good life, which includes virtuous behavior and a sense of purpose. This does not align with Lucretius' definition of happiness as found in not fearing death.
Seneca (4 BC - 65 AD)
"Happiness is found in living intensively in virtue"
"Happiness is found in perfection of reason (virtue)"
"Happiness is in knowing that you have virtue in all times. You have the control"
"Since only reason completes a human being, only reason makes him perfectly happy"
"Happiness is found by living according to the experience of what happens by nature"
"Happiness is found in prudence"
"Happiness consists in the possession and use of goods"
Explanation
Seneca was a Stoic philosopher who believed that true happiness could only be found through the practice of virtue. He saw virtue as the foundation of a happy life and believed that living in accordance with nature was essential to achieving this happiness. For Seneca, reason and prudence were also key components of a happy life, as they enabled individuals to make rational decisions and avoid harmful emotions such as anger and fear. Seneca's ideas about happiness were influenced by his own experiences, including his political career and personal struggles. He believed that happiness was within our control, and that we could achieve it by developing our reason and focusing on the present moment. In his writing, Seneca emphasized the importance of self-awareness, reflection, and self-improvement as paths to happiness. He also stressed the need for social connections and community, highlighting the role that friendship plays in supporting a happy life. Overall, Seneca believed that happiness is not something we can achieve through external circumstances, but rather is something that we can cultivate within ourselves through the practice of virtue and reason.
Who agrees
Plato: Plato believed that happiness was a result of living a virtuous life, which includes living with wisdom, courage, and self-control. In his work "The Republic," Plato argues that the just life, which is the virtuous life, is the happiest life. Plato agrees with Seneca's definition because he believes that living a life of virtue is necessary for happiness.

Aristotle: Aristotle believes that happiness is achieved through the practice of virtue. He believes that living a life of virtue is essential to achieving happiness. Aristotle agrees with Seneca's definition because he thinks that happiness is found in living a virtuous life.
Who Disagrees
Epicurus: Epicurus believes that happiness is the ultimate goal of human life, and it is achieved by pursuing pleasure and avoiding pain. He thinks that living a virtuous life is only valuable because it leads to happiness. Epicurus disagrees with Seneca's definition because he believes that happiness is found in the absence of pain and fear, and it is not necessary to live a virtuous life to achieve happiness.

Thomas Aquinas: Thomas Aquinas believes that happiness is the ultimate end of human life, and it is achieved by living in accordance with God's will. He thinks that living a life of virtue is essential to achieving happiness, but it is not enough to ensure happiness. Thomas Aquinas disagrees with Seneca's definition because he thinks that happiness is found in living in accordance with God's will, and not necessarily in living a virtuous life.
Epictetus (55 - 135)
"Happiness comes from the stability of virtue"
"Happiness, results from recognizing that what matters is up to us"
Explanation
Epictetus was a Stoic philosopher who believed that happiness comes from the stability of virtue. For him, virtue was the only true good and the key to a happy life. Epictetus believed that happiness could not be found in external things or circumstances, but only in the stability of our own character and our ability to control our thoughts and emotions. In this sense, he taught that happiness results from recognizing that what matters is up to us, meaning that we have control over our own thoughts, desires, and actions. By focusing on what is within our power and living in accordance with our own values and principles, we can find lasting happiness and fulfillment.
Who agrees
Seneca: Epictetus was a follower of the Stoic school of philosophy, which was also followed by Seneca. Both agree that happiness comes from virtue and that virtue is within our control. Epictetus's definition of happiness coming from the stability of virtue aligns with Seneca's idea of living intensively in virtue.

Marcus Aurelius: As a Stoic philosopher, Marcus Aurelius also believed that happiness comes from living according to virtue. He emphasized that our thoughts and attitudes are within our control and that we should focus on what we can control, which aligns with Epictetus's idea that happiness results from recognizing what is up to us.

Aristotle: Aristotle believed that happiness comes from living a virtuous life, which he defined as a life of reason and ethical excellence. This aligns with Epictetus's idea that happiness comes from the stability of virtue.
Who Disagrees
Epicurus: Epicurus believed that happiness comes from the pursuit of pleasure and the avoidance of pain, which is contrary to Epictetus's idea that happiness comes from recognizing what is up to us and living a life of stability in virtue.

Plato: Plato believed that happiness comes from the attainment of knowledge and wisdom, as well as living in accordance with the Forms. While he believed that virtue was necessary for happiness, he did not emphasize the importance of individual responsibility and self-control in the way that Epictetus did.

Thomas Hobbes: Hobbes believed that human beings are naturally selfish and aggressive, and that the state of nature is characterized by a "war of all against all." He argued that the only way to achieve happiness is through a strong and authoritarian government that can maintain order and prevent chaos. This is in direct opposition to Epictetus's idea that happiness comes from recognizing what is up to us and living a life of stability in virtue.
Marcus Aurelius (121 - 180)
"Happiness comes by living a life with good principles"
Explanation
Marcus Aurelius, as a Stoic philosopher and Roman emperor, believed that living a virtuous life was the key to happiness. He believed that happiness came from living in accordance with reason, wisdom, and the principles of justice, courage, temperance, and wisdom. By adhering to these principles, one could cultivate inner tranquility and contentment, regardless of external circumstances. Aurelius emphasized the importance of accepting what is outside of our control and focusing on what we can control - our own thoughts, emotions, and actions. By living with good principles, one could cultivate a sense of purpose and meaning in life, which ultimately leads to a fulfilling and happy existence.
Who agrees
Socrates: Socrates believed that living a life of virtue and moral principles is essential to attain happiness. He emphasized that the pursuit of knowledge and understanding is the key to living a good life, which is in line with the definition made by Marcus Aurelius.

Plato: Plato believed that the ultimate goal of human life is to achieve happiness through the attainment of wisdom and knowledge. He believed that living a life with good principles is necessary to attain happiness, and that knowledge of the forms is the key to attaining true happiness.

Aristotle: Aristotle believed that the ultimate goal of human life is to attain eudaimonia, which is often translated as happiness. He believed that happiness comes from living a life of virtue, and that living a life with good principles is necessary to attain happiness.

Epictetus: Epictetus believed that happiness comes from within and can be achieved by living a life of virtue and moral principles. He emphasized that the key to living a good life is to focus on what is within our control and to accept what is outside our control.
Who Disagrees
Epicurus: Epicurus believed that the ultimate goal of human life is to attain ataraxia, which is often translated as tranquility or peace of mind. He believed that happiness comes from avoiding pain and living a simple life, rather than from living a life of virtue and moral principles.

Lucretius: Lucretius, a follower of Epicureanism, believed that the ultimate goal of human life is to attain ataraxia. He believed that living a life of virtue and moral principles is unnecessary for attaining happiness, and that happiness comes from living a simple life and avoiding pain.

Francis Bacon: Bacon believed that the pursuit of knowledge and understanding is the key to living a good life. He did not necessarily believe that living a life of virtue and moral principles is necessary to attain happiness, and instead emphasized the importance of practical knowledge and scientific inquiry.

Thomas Hobbes: Hobbes believed that the ultimate goal of human life is to attain a state of self-preservation, which he called the "state of nature." He believed that living a life of virtue and moral principles is unnecessary for attaining happiness, and that the pursuit of power and self-interest is necessary for survival.

René Descartes: Descartes believed that the pursuit of knowledge and understanding is the key to living a good life. He did not necessarily believe that living a life of virtue and moral principles is necessary to attain happiness, and instead emphasized the importance of reason and rational inquiry.
St. Augustine (354- 430)
"The happy life is found in the memory"
"The happy life is joy based on the truth"
"Happiness is not possible"
"Happiness is not the result of money"
"Happiness is found in the divine"
Explanation
St. Augustine's philosophy is heavily influenced by his Christian beliefs. According to Augustine, happiness is not found in earthly possessions or pleasures, but rather in the divine. He believed that true happiness could only be found in God, and that earthly joys were temporary and fleeting. Augustine also believed that the happy life is found in the memory, meaning that happiness is not just about experiencing good things at the moment, but also about having a meaningful past. For Augustine, the happy life is not just a matter of personal pleasure but is based on joy that comes from knowing and experiencing the truth. In his view, happiness is not possible without God, and our ultimate goal should be to seek union with Him.
Who agrees
Cicero: Cicero believed that the happy life is found in the memory, as he stated in his work "De Finibus Bonorum et Malorum." He argued that the memories of good things bring pleasure and joy to one's life, which aligns with St. Augustine's definition of the happy life.

Seneca: Seneca believed that the happy life is joy based on the truth, which is similar to St. Augustine's definition of joy based on divine truth. Seneca believed that happiness is found in a life of virtue and wisdom, which is in line with St. Augustine's emphasis on the importance of the divine in achieving happiness.

Boethius: Boethius believed that happiness is found in the divine, as he stated in his work "The Consolation of Philosophy." He argued that true happiness is only possible when one has a relationship with God, which aligns with St. Augustine's belief that happiness is found in the divine.
Who Disagrees
Epicurus: Epicurus believed that happiness is possible, and that it is the result of a life free from pain and fear. He argued that happiness is found in the pursuit of pleasure and the avoidance of pain, which is contrary to St. Augustine's belief that happiness is found in the divine.

Aristotle: Aristotle believed that happiness is the result of a life lived in accordance with reason and virtue. He argued that happiness is the highest goal of human life, and that it is achievable through the development of good habits and virtues. This view is different from St. Augustine's emphasis on the importance of the divine in achieving happiness.

Thomas Hobbes: Hobbes believed that happiness is not possible, as he argued that human life is "solitary, poor, nasty, brutish, and short." He believed that life is a constant struggle for survival and that happiness is an illusion. This view is contrary to St. Augustine's belief in the possibility of happiness through a relationship with the divine.
Thomas Aquinas (1221 - 1274)
"Happiness is found in the divine"
Explanation
Aquinas, a prominent medieval philosopher and theologian, believed that happiness, or beatitude as he called it, is found in the divine. He argued that human beings have a natural desire for happiness, which is ultimately fulfilled by attaining the beatific vision, or the direct knowledge and experience of God. Aquinas believed that happiness cannot be found in material possessions, pleasure, or earthly power, as these are all fleeting and ultimately unsatisfying. Instead, he believed that true and lasting happiness can only be found in God, who is perfect and unchanging. For Aquinas, a life of virtue and moral goodness is essential for attaining this happiness, as it is through living a good life that we can come closer to God and ultimately achieve beatitude.
Who agrees
Plato: Plato believed that the highest form of happiness could be achieved through the contemplation of the eternal Forms or Ideas, which he considered to be divine in nature. This aligns with Aquinas' idea that happiness is found in the divine.

Aristotle: Aristotle also believed that the ultimate goal of human life was to achieve eudaimonia, a state of flourishing that is achieved through virtuous living. He believed that this state of flourishing was linked to the divine, as it required living in accordance with reason and the natural order of the universe. This idea is consistent with Aquinas' view that happiness is found in the divine.

St. Augustine: Augustine believed that true happiness could only be found in God, and that the human soul could only find peace and fulfillment through a relationship with the divine. This aligns closely with Aquinas' belief that happiness is found in the divine.
Who Disagrees
Epicurus: Epicurus believed that happiness was the result of pleasure and the absence of pain, and that the gods played no role in human happiness. He argued that people should pursue pleasure in a rational and disciplined way, without being ruled by their passions. This differs from Aquinas' idea that happiness is found in the divine.

René Descartes: Descartes believed that happiness was the result of knowledge and understanding, particularly of the self and the natural world. He argued that people should use reason to free themselves from the limitations of the senses and the illusions of the world. This differs from Aquinas' view that happiness is found in the divine, although it is possible that Descartes would have seen a connection between his ideas and the concept of divine truth.
Michel de Montaigne (1533 - 1592)
"The constant happiness is found in a philosopher's mind that aims at virtue"
"Happiness is achieved by having the strength of Socrates aimed at virtue"
Explanation
Michel de Montaigne believed that happiness is not just a fleeting emotion, but rather a constant state of mind. He thought that this constant happiness is only achievable by a philosopher's mind that aims at virtue. According to Montaigne, virtue is not something that can be acquired overnight, but rather it is a lifelong process that requires strength and determination. He believed that Socrates was the perfect example of someone who had the strength aimed at virtue, and that his philosophy was the key to happiness. For Montaigne, happiness was not about material possessions or worldly success, but rather about finding contentment in the pursuit of virtue and wisdom.
Who agrees
Seneca: Seneca believed that true happiness is attained by living a virtuous life. He argued that the virtues of wisdom, courage, justice, and self-control are the key to leading a happy life. In his works, he emphasizes that we should focus on living a good life rather than seeking external pleasures. This is in line with Montaigne's definition of happiness, which emphasizes the importance of cultivating a virtuous mind.

Epictetus: Epictetus was a Stoic philosopher who believed that the key to happiness is to focus on what is within our control and to accept what is outside our control. He believed that happiness can only be attained by living a virtuous life and by cultivating a mind that is free from negative emotions such as anger, fear, and envy. This is similar to Montaigne's definition of happiness, which emphasizes the importance of cultivating a virtuous mind.
Who Disagrees
Aristotle: Aristotle believed that happiness is achieved by living a life of contemplation and by engaging in activities that are in line with our natural inclinations. He believed that happiness can only be attained by living a life of virtue, but he also believed that external goods such as wealth, fame, and pleasure are necessary for a happy life. This is in contrast to Montaigne's definition of happiness, which emphasizes the importance of a virtuous mind over external goods.

Plato: Plato believed that true happiness is attained by contemplating the Forms and by achieving knowledge of the highest truths. He believed that happiness can only be attained by living a life of virtue and by cultivating a mind that is free from ignorance and delusion. This is in contrast to Montaigne's definition of happiness, which emphasizes the importance of cultivating a virtuous mind through the practice of philosophy, rather than attaining knowledge of the Forms.
René Descartes (1596 - 1650)
"Happiness is in thought"
"Happiness is in reason"
"Happiness is in the free use of reason"
Explanation
Rene Descartes believed that happiness was closely tied to the use of reason and thought. For Descartes, the pursuit of knowledge and understanding was a key component of the happy life. He believed that happiness could be found in the free and unencumbered use of reason, allowing individuals to think clearly and logically about the world around them. In this way, happiness was not something that could be obtained through external circumstances or material possessions, but rather through the internal workings of the mind. By engaging in philosophical inquiry and contemplation, individuals could cultivate a sense of satisfaction and fulfillment that could not be achieved through other means. For Descartes, the life of the mind was the key to a truly happy and fulfilling existence.
Who agrees
Plato: Plato was a proponent of rationalism, the belief that knowledge comes primarily from reason rather than from experience. He believed that the highest form of knowledge was knowledge of the Forms, which were abstract concepts that existed independently of the physical world. Plato believed that happiness was achieved through the contemplation of these Forms, which required the use of reason.

Aristotle: Aristotle believed that happiness was the ultimate goal of human life, and that it was achieved through the use of reason. He believed that reason allowed people to live a virtuous life, which in turn led to happiness. Aristotle also believed that reason was necessary for scientific inquiry, and that knowledge of the natural world could only be gained through observation and deduction.

René Descartes: Descartes believed that the key to happiness was the free use of reason. He believed that reason was the only reliable guide to truth, and that people should use reason to examine their beliefs and opinions in order to arrive at a clear and distinct understanding of the world. Descartes believed that the free use of reason allowed people to achieve happiness by understanding the nature of reality and their place in it.
Who Disagrees
Epicurus: Epicurus believed that happiness was achieved through the pursuit of pleasure and the avoidance of pain. He believed that reason should be used to achieve these goals, but that reason should not be pursued for its own sake. Epicurus believed that the goal of philosophy was to achieve a state of tranquility, or ataraxia, which was achieved through the pursuit of pleasure and the avoidance of pain.

Thomas Hobbes: Hobbes believed that people were driven by their own self-interest, and that the pursuit of happiness was the ultimate goal of human life. However, he did not believe that reason was the key to achieving happiness. Instead, Hobbes believed that the pursuit of happiness required the establishment of a strong government that could ensure social order and protect people's rights.

Francis Bacon: Bacon believed that the pursuit of knowledge should be guided by empirical observation rather than reason alone. He believed that people should use their senses to gather information about the natural world, and that reason should be used to analyze and interpret that information. Bacon also believed that the pursuit of knowledge was a means to achieve happiness, but that reason alone was not sufficient to achieve that goal.
Simplify
Conclusion
After examining various definitions of happiness from different philosophers throughout history, we can conclude that happiness is a complex and multifaceted concept. While some philosophers such as Aristotle and Epicurus believed that happiness is the result of living in accordance with virtue and having good friendships, others such as Diogenes and Hegasias believed that happiness is not possible, and others such as Pascal and Seneca believed that happiness is found in living according to certain principles, including faith and reason.

Despite the different perspectives on happiness, there seems to be a consensus among philosophers that happiness is not simply about pleasure or the acquisition of material possessions. Rather, happiness is something that requires inner reflection, self-awareness, and a commitment to living a life of integrity and purpose. Many philosophers also emphasize the importance of accepting the limitations of human existence and being content with what one has, rather than constantly striving for more.

Ultimately, the search for happiness is an ongoing process that requires ongoing effort and self-reflection. It is not something that can be achieved through external circumstances alone, but rather, it is a state of being that is cultivated through a combination of inner peace, self-knowledge, and a commitment to living a virtuous life.

Mind

10 Philosophers
The mind is a complex system of cognitive processes and functions responsible for perception, thought, emotion, and behavior.
Notes
Anaxagoras (c. 500 BC– c. 428 BC)
"Mind is motion"
"Mind is unmixed"
"Mind is order and everything"
Explanation
Anaxagoras, a Greek philosopher, believed that everything in the universe is composed of infinitely small particles called "seeds," which contain the potential for all things. He believed that the mind was the driving force behind these particles, and that it was responsible for organizing and directing them.

When Anaxagoras described the mind as "motion," he was referring to its ability to cause movement and change in the physical world. He believed that the mind was the source of all movement and activity, and that it was responsible for the constant flux and transformation of the universe.

Anaxagoras also described the mind as "unmixed," meaning that it was separate and distinct from the physical world. He believed that the mind was a pure, unchanging entity that existed outside of time and space.

Finally, Anaxagoras described the mind as "order and everything," meaning that it was responsible for creating order and structure in the universe. He believed that the mind was the ultimate source of all knowledge, and that it was the key to understanding the workings of the cosmos. In summary, Anaxagoras defined the mind as a powerful force that was responsible for creating movement, order, and structure in the universe, and which existed outside of the physical world.
Who agrees
Aristotle: Aristotle was greatly influenced by Anaxagoras and his ideas of the role of mind or intellect in the universe. Aristotle believed that everything in the universe has a purpose and is directed by an external force, which he called the "unmoved mover." This idea is similar to Anaxagoras' concept of mind as an ordering principle.

Plato: Plato also admired Anaxagoras' ideas and referenced him in his own philosophical works. Plato believed in the existence of a transcendent realm of Forms or Ideas, which he thought were the true objects of knowledge. This view is compatible with Anaxagoras' idea of mind as a pure, unmixed substance that transcends the material world.

Empedocles: Empedocles believed that everything in the universe is composed of four basic elements: earth, air, fire, and water. However, he also believed in the existence of a fifth element, which he called "love" or "harmony," that binds the other four elements together. This idea is similar to Anaxagoras' concept of mind as an ordering principle that gives structure and coherence to the universe.
Who Disagrees
Democritus: Democritus was a materialist who believed that the universe was composed of indivisible particles called atoms. He rejected the idea of mind or soul as a separate, transcendent substance and instead viewed consciousness as an emergent property of the material world. This view is incompatible with Anaxagoras' idea of mind as a pure, unmixed substance.

Heraclitus: Heraclitus believed that the universe was in a constant state of flux and change. He rejected the idea of any fixed, stable substance or essence, including the concept of mind. This view is incompatible with Anaxagoras' idea of mind as an ordering principle that brings stability and coherence to the universe.

Epicurus: Epicurus believed that the universe was composed of atoms moving through empty space. He rejected the idea of any divine or supernatural forces guiding the universe and instead emphasized the importance of individual human pleasure and happiness. This view is incompatible with Anaxagoras' idea of mind as an ordering principle that directs the movements of the universe.

Plato (c. 424 – c. 347 BC)
"Mind is language"
"Mind is the result of talking to ourselves"
"Mind is like a waxen tablet"
"Mind is responsible to term the cause"
"The mind is an avery of birds"
Explanation
Plato's definition of mind as language and the result of talking to ourselves stems from his belief that the mind is the seat of knowledge and understanding. For Plato, knowledge is not something that can be acquired through the senses alone, but is instead something that must be remembered from a prior existence. In this sense, the mind is not simply a passive receptacle for sensory information, but an active participant in the process of understanding. The metaphor of the waxen tablet emphasizes the idea that the mind is a blank slate that can be molded and shaped through experience and education. The idea that the mind is responsible to term the cause refers to the concept that the mind is capable of abstract reasoning and can discern the underlying principles that govern the world. Finally, the metaphor of the avery of birds suggests that the mind is a complex and multi-faceted entity that can contain a variety of different thoughts and ideas.
Who agrees
Aristotle: Aristotle was Plato's student and agreed with him on many philosophical concepts. In his works, he frequently used the metaphor of the waxen tablet to describe the mind's ability to receive and retain knowledge. He also believed that language was an essential tool for the mind to communicate and express its ideas.

St. Augustine: Augustine was heavily influenced by Plato's philosophy and believed that the mind was like a "mirror of God" that could reflect divine truths. He also used the waxen tablet metaphor to describe the mind's ability to receive and retain knowledge.

René Descartes: Descartes believed that the mind and body were separate entities and that the mind had a special ability to reason and understand abstract concepts. He also believed that the mind was like a waxen tablet, which could be shaped and molded by experience and learning.
Who Disagrees
Epicurus: Epicurus rejected Plato's notion that the mind was like a waxen tablet and instead believed that all knowledge was gained through sensory experience. He also believed that language was simply a tool for communication and did not play a significant role in shaping the mind's understanding of the world.

Thomas Hobbes: Hobbes believed that the mind was not an innate entity, but rather a product of sensory experience. He rejected the idea that the mind was like a waxen tablet and instead saw it as a complex machine that processed sensory input.

Francis Bacon: Bacon believed that knowledge was gained through empirical observation and experimentation, and rejected the idea that the mind was like a waxen tablet. He also saw language as a tool for communication rather than a defining feature of the mind's ability to reason and understand.
Aristotle (435 BC -356 BC)
"The mind is responsible for the perception of time"
"The mind is circle (movement)"
"Mind is a independent substance  incapable of being destroyed"
"Mind cannot reasonably be regarded as blended with the body"
"Mind contains some element of everything"
"Mind is in its essential nature activity"
"Mind is the form of forms and sense the form of sensible things"
Explanation
Aristotle believed that the mind is responsible for the perception of time because it is the faculty that allows us to perceive change, which is the basis for our concept of time. He also saw the mind as circular or in constant motion because it is constantly active and constantly processing new information. Aristotle viewed the mind as an independent substance that cannot be destroyed because he believed it to be immortal and separate from the physical body. He also rejected the idea that the mind is blended with the body because he saw the mind as a higher, more divine part of the human being. According to Aristotle, the mind contains elements of everything because it has the ability to understand and categorize all things. He viewed the mind as an active force because it is constantly engaged in the process of thinking, understanding, and creating. Finally, Aristotle believed that the mind is the form of forms, meaning that it is the underlying principle that gives shape and meaning to all things, and that sense perception is the form of sensible things because it allows us to perceive the world around us.
Who agrees
Plato: Plato was a student of Aristotle and shared his belief in the dualistic nature of the mind and body. Plato believed that the mind was the source of knowledge and truth, and that it existed independently of the physical body. He also believed that the mind was responsible for perceiving the world, and that it contained the forms or ideas that gave shape and meaning to reality. In this way, Plato's views on the mind align with Aristotle's definition that the mind is the form of forms.

Thomas Aquinas: Thomas Aquinas was heavily influenced by Aristotle's philosophy and incorporated many of his ideas into his own work. Aquinas believed in the immortality of the soul and saw the mind as an independent substance that could not be destroyed. He also believed that the mind was responsible for perception and understanding, and that it contained some element of everything, which is in line with Aristotle's definition.
Who Disagrees
René Descartes: Descartes famously believed in the separation of mind and body, but he saw the mind as a non-physical substance that was completely separate from the body. In contrast, Aristotle believed that the mind was closely connected to the body and could not reasonably be regarded as blended with it. Descartes also believed that the mind was passive and did not contain any innate ideas or knowledge, which contradicts Aristotle's belief that the mind is in its essential nature activity.

Thomas Hobbes: Hobbes believed that the mind was simply a series of mechanical operations and that it was completely dependent on the body for its existence. He rejected the idea that the mind was an independent substance and believed that it could be destroyed along with the body. Hobbes also did not see the mind as responsible for perception and understanding, which contradicts Aristotle's definition that the mind is responsible for the perception of time and contains some element of everything.
Seneca (424 BC -347 BC)
"Mind is responsible to contemplate the truth"
"Mind assigns values to things in accordance with nature and not on the basis of mere opinion"
"Mind involves itself in the whole cosmos"
"Mind is the result of who we are"
Explanation
Seneca's definition of mind can be understood as reflecting his belief in the Stoic philosophy, which holds that the universe is governed by reason and that human beings have the ability to align their own minds with this cosmic reason. By defining the mind as responsible for contemplating truth and assigning values to things in accordance with nature, Seneca is emphasizing the importance of rationality and objectivity in human thinking. He also sees the mind as not merely a personal faculty, but one that is connected to the larger cosmos, which emphasizes the Stoic notion of living in harmony with nature. Finally, by defining the mind as the result of who we are, Seneca is emphasizing the connection between our thoughts and actions, and our character and identity. Overall, Seneca's definition of mind reflects his belief that cultivating a rational and virtuous mindset is essential to living a meaningful and fulfilling life.
Who agrees
Plato: In his theory of Forms, Plato posits that true knowledge can only be achieved through contemplation of the Forms, which are eternal and unchanging. This aligns with Seneca's definition that the mind is responsible for contemplating the truth.

Aristotle: Aristotle believed in a concept called eudaimonia, which roughly translates to "human flourishing." He believed that the ultimate goal of human life is to achieve this state, and that this could only be accomplished by living in accordance with nature. This aligns with Seneca's definition that the mind assigns values to things in accordance with nature and not on the basis of mere opinion.

Epicurus: Epicurus believed that the universe is made up of atoms and that all human behavior is determined by the pursuit of pleasure and the avoidance of pain. However, he also believed that pleasure could only be achieved by living in accordance with nature and avoiding excess. This aligns with Seneca's definition that the mind involves itself in the whole cosmos.

Marcus Aurelius: As a Stoic philosopher, Marcus Aurelius believed in the interconnectedness of all things and the importance of living in harmony with nature. He believed that the mind should focus on the present moment and accept whatever happens with equanimity. This aligns with Seneca's definition that the mind is the result of who we are.
Who Disagrees
Democritus: Democritus believed that the universe is made up of atoms and that all reality is ultimately material. He did not believe in the existence of a soul or mind separate from the body, which contradicts Seneca's definition that the mind is responsible for contemplating the truth.

Lucretius: Like Democritus, Lucretius believed in a materialistic view of reality and did not believe in the existence of a soul or mind separate from the body. He also believed that the pursuit of pleasure is the ultimate goal of human life, which contradicts Seneca's definition that the mind assigns values to things in accordance with nature and not on the basis of mere opinion.

Pascal: Pascal was a Christian philosopher who believed in the existence of a soul and the importance of religious faith. He did not believe that the pursuit of pleasure was the ultimate goal of human life, which contradicts Seneca's definition that the mind assigns values to things in accordance with nature and not on the basis of mere opinion.

Descartes: Descartes famously believed in the separation of mind and body, arguing that the mind is a non-physical substance that can exist independently of the body. This contradicts Seneca's definition that the mind is the result of who we are.
Marcus Aurelius (c. 121–c. 180)
"Mind is reason"
"The mind is that which is roused and directed by itself"
"The mind is undisturbed, knows no obstructions, except those from within"
"Mind is God and of God"
Explanation
Marcus Aurelius' definition of mind is reflective of his own personal philosophy as a Stoic, which is centered on the idea of reason and virtue. By defining mind as reason, Aurelius emphasizes the importance of rationality and the ability to think critically in human thinking. He also sees the mind as something that is self-directed, and capable of controlling one's thoughts and emotions. This idea of self-mastery is a central aspect of Stoic philosophy, and is seen as essential to living a good life. Additionally, by defining the mind as undisturbed and free from external obstructions, Aurelius is emphasizing the Stoic idea that one's inner state of mind is more important than external circumstances. Finally, by equating the mind with God, Aurelius is expressing his belief in a universal force or power that is present in all things, and which human beings can align their own minds with in order to achieve a sense of harmony and purpose in life. Overall, Aurelius' definition of mind reflects his belief that cultivating a rational and virtuous mindset is essential to living a good and meaningful life.
Who agrees
Epictetus: Epictetus agreed with Marcus Aurelius' definition that "the mind is that which is roused and directed by itself" in his Enchiridion, where he states that the mind is the only thing that can be controlled by an individual and that external events are beyond one's control.

Thomas Aquinas: Thomas Aquinas agreed with Marcus Aurelius' definition that "mind is reason" in his Summa Theologica, where he argues that reason is a fundamental characteristic of human beings that enables them to understand and participate in the divine order of the universe.

René Descartes: Descartes agreed with Marcus Aurelius' definition that "the mind is undisturbed, knows no obstructions, except those from within" in his Meditations on First Philosophy, where he argues that the mind is capable of clear and distinct knowledge that is immune to doubt and skepticism.
Who Disagrees
Plato: Plato disagreed with Marcus Aurelius' definition that "mind is God and of God" in his Republic, where he argues that the divine is beyond human understanding and that human reason is a flawed and imperfect reflection of the divine.

Aristotle: Aristotle disagreed with Marcus Aurelius' definition that "mind is God and of God" in his Metaphysics, where he argues that the divine is an impersonal force that is separate from human reason and intellect.

Francis Bacon: Bacon disagreed with Marcus Aurelius' definition that "mind is undisturbed, knows no obstructions, except those from within" in his Novum Organum, where he argues that the mind is subject to a variety of biases and cognitive limitations that must be overcome through scientific investigation and experimentation.
Augustine of Hippo (c. 354 – 430)
"The mind is limited by will"
"Mind is incorporeal"
"Mind is responsible to gather and collect"
"Mind is the controller of limbs and perceiver of senses"
"Mind is the measure of time"
Explanation
Augustine of Hippo, a prominent philosopher and theologian of the fourth century, defined the mind as a complex entity with several essential characteristics. According to him, the mind is limited by the will, meaning that the individual's decisions and choices shape their thoughts and actions. Additionally, Augustine believed that the mind is incorporeal, meaning that it is not bound to the physical body and can exist independently. The mind is also responsible for gathering and collecting information and experiences, which it uses to make decisions and form opinions. It is the controller of the limbs and the perceiver of the senses, meaning that it governs the body's movements and receives information from the sensory organs. Finally, Augustine considered the mind to be the measure of time, as it is the faculty responsible for perceiving the passage of time and our place within it. Overall, Augustine's understanding of the mind was multidimensional, recognizing its many roles and capacities in human cognition and experience.
Who agrees
Plato: Plato believed that the soul (which is often equated with the mind) is immortal and exists independently of the body. He also considered the soul to be the source of knowledge and the controller of bodily actions, which aligns with Augustine's ideas of the mind as incorporeal and the controller of limbs.

Aristotle: Aristotle recognized the close relationship between the mind and the body, but he also believed that the mind has certain capacities that are not dependent on the body, such as the ability to reason and think abstractly. This is similar to Augustine's idea of the mind as incorporeal.

Thomas Aquinas: Aquinas believed that the soul (again, often equated with the mind) is the form of the body, meaning that it gives shape and organization to the physical body. He also argued that the mind has the power of intellect and will, which correspond to Augustine's ideas of the mind as limited by will and responsible for gathering and collecting information.
Who Disagrees
Democritus: Democritus was a materialist who believed that everything in the universe, including the mind, is made up of atoms. He saw the mind as a product of physical interactions between atoms in the body, rather than an independent, non-physical entity. This contradicts Augustine's idea of the mind as incorporeal.

Epicurus: Epicurus believed that the mind is a physical entity made up of atoms that are constantly in motion. He saw the mind as a source of pleasure and pain, rather than a controller of bodily actions or a measure of time, as Augustine believed.

René Descartes: Descartes is known for his famous quote, "Cogito, ergo sum" ("I think, therefore I am"), which reflects his belief in the primacy of the mind over the body. However, he also saw the mind and body as separate substances that interact with each other, rather than as closely integrated entities as Augustine did.
Thomas Aquinas (c. 1221–1274)
"Mind is the cause of things by rules and measures"
"Mind is knowledge in potentiality"
"Mind is discursive movement of one thing being known through another"
"Mind is something incorporeal and subsistent"
"Mind is void of matter"
"Mind is  a light lit up by the light of the Divine Word"
Explanation
Thomas Aquinas defined the mind as the cause of things by rules and measures because he believed that the human intellect is capable of understanding the natural order of the world and can use this understanding to establish the rules and measures that govern it. He also defined the mind as knowledge in potentiality because he believed that the human intellect has the capacity to know all things through the use of reason and that knowledge is not limited to what can be perceived by the senses. The mind is a discursive movement of one thing being known through another because it is through the intellect that we are able to reason and come to new conclusions. Aquinas believed that the mind is something incorporeal and subsistent because it is not bound by the limitations of the physical body and can exist independently of it. He also believed that the mind is void of matter because it is not a physical substance, but rather an immaterial one. Finally, he believed that the mind is a light lit up by the light of the Divine Word because he believed that human reason and intellect is a reflection of the divine intellect and that knowledge and understanding ultimately come from God.
Who agrees
Plato: Plato believed that the mind is separate from the body and is the cause of knowledge. He also believed that the mind is immaterial and eternal, which is consistent with Aquinas' definition of the mind as incorporeal and subsistent.

Aristotle: Aristotle believed that the mind is the cause of things and is capable of knowledge. He also believed that the mind is immaterial and can exist separately from the body, which is consistent with Aquinas' definition of the mind as incorporeal and void of matter.

Descartes: Descartes believed that the mind is a non-physical substance that is separate from the body. He also believed that the mind is capable of knowledge and that it is the cause of things. These beliefs are consistent with Aquinas' definition of the mind as incorporeal, void of matter, and the cause of things by rules and measures.
Who Disagrees
Democritus: Democritus believed that the mind is made up of atoms and is therefore material. This is inconsistent with Aquinas' definition of the mind as incorporeal and void of matter.

Epicurus: Epicurus believed that the mind is made up of atoms and is therefore material. He also believed that the mind is not capable of knowledge beyond sensory experience, which is inconsistent with Aquinas' definition of the mind as the cause of things by rules and measures.

Francis Bacon: Bacon believed that the mind is a blank slate at birth and that knowledge is acquired through sensory experience. This is inconsistent with Aquinas' definition of the mind as knowledge in potentiality and as a discursive movement of one thing being known through another.
Michel de Montaigne (c. 1533–1592)
"Mind is order"
Explanation
Michel de Montaigne believed that the mind is the source of order in the world. He saw the mind as a powerful force that shapes and organizes our experiences and perceptions, allowing us to make sense of the world around us. According to Montaigne, the mind imposes order on chaos and helps us to understand and navigate the complexities of life. By defining the mind as order, Montaigne emphasized the importance of the mind's ability to bring coherence and structure to our thoughts and experiences.
Who agrees
Plato: In his dialogue "Timaeus," Plato suggests that the universe is an ordered system created by a divine craftsman or Demiurge. The mind, according to Plato, is capable of understanding the order and harmony of the universe, and this knowledge leads to a life of virtue and happiness.

René Descartes: Descartes believed that the mind was a separate substance from the body, and that its essence was to think. He argued that the mind was capable of understanding the order and structure of reality through the use of reason and the application of mathematical principles.

Thomas Hobbes: Hobbes believed that the human mind was a mechanism that operated according to the laws of physics and that knowledge was acquired through the process of sensory perception. He argued that the mind could understand the order of the natural world by observing its physical properties and interactions.
Who Disagrees
Aristotle: Aristotle believed that the mind was not simply an ordered system, but that it was also capable of imagination and creativity. He argued that the mind could understand the natural world by using empirical observation and logical deduction, but that it was also capable of generating new ideas and insights.

Francis Bacon: Bacon believed that the human mind was subject to error and bias, and that the only way to understand the natural world was through careful observation and experimentation. He argued that the mind could not rely solely on abstract concepts of order and structure, but had to be guided by empirical evidence.

Immanuel Kant: Kant believed that the mind was not simply a passive recipient of sensory information, but that it actively shaped and organized our perception of reality. He argued that the mind imposed certain categories and concepts on our experience of the world, and that these categories were not necessarily reflective of an objective order or structure.
Thomas Hobbes (1588–1679)
"Mind is sense, thoughts, and the train of thoughts"
"Mind is perspicuous words"
Explanation
Thomas Hobbes defined the mind as a combination of sense, thoughts, and the train of thoughts, suggesting that the mind is not a passive receiver of knowledge but an active generator of ideas. According to Hobbes, the mind is constantly engaged in a process of thought and reflection, which involves the processing of sensory input and the creation of mental images and concepts. In addition, Hobbes also viewed the mind as being closely linked to language, stating that it is through the use of "perspicuous words" that we are able to communicate our thoughts and ideas to others. In this way, Hobbes viewed the mind as a dynamic and social entity, which is constantly engaged in a process of communication and exchange with the world around us.
Who agrees
Thomas Aquinas: Thomas Aquinas, shares the view of Thomas Hobbes that the mind is related to the sense perception. He believes that our senses are the gateway to our knowledge, which can be translated into thought and reason.

René Descartes: René Descartes, agrees with Hobbes that the mind is related to thought. Descartes believes that the mind is separate from the body and that it is the source of consciousness, thought, and reason.

Francis Bacon: Francis Bacon, shares Hobbes' view that the mind is related to language. He believes that language is the means by which we communicate and share knowledge with each other.
Who Disagrees
Plato: Plato, a Greek philosopher, disagrees with Hobbes' definition of the mind. He believes that the mind is a separate entity from the body and that it is immortal. Plato also holds the view that knowledge is innate and that we can access it through contemplation and reasoning.

Aristotle: Aristotle, a Greek philosopher and student of Plato, also disagrees with Hobbes' definition of the mind. Aristotle believes that the mind is related to perception, but he rejects the idea that knowledge is innate. Aristotle argues that knowledge is acquired through experience, and that it is possible to develop new knowledge through reasoning and observation.

Epicurus: Epicurus, a Greek philosopher, disagrees with Hobbes' definition of the mind as perspicuous words. He believes that language is limited and that it cannot fully capture our thoughts and emotions. Epicurus argues that the mind is related to sensation and that our senses are the primary source of our knowledge.
Rene Descartes (1596–1650)
"Mind is aware since it thinks"
"Mind is finite and limited"
"Mind is a pure substance"
"Mind is distinct from body"
"Mind is the proof of existence"
Explanation
René Descartes defined mind as aware since it thinks because he believed that the essence of the mind is thought, and that we can be sure of our own existence because we are aware of our own thoughts. He also believed that the mind is a finite and limited pure substance that is distinct from the body, which is an extended substance. For Descartes, the mind is a non-physical entity that interacts with the body through the pineal gland, and it is through the mind that we experience consciousness and form our sense of self. Descartes famously wrote "Cogito, ergo sum" or "I think, therefore I am," which he saw as the proof of the existence of the mind as a separate entity from the body.
Who agrees
Plato: In his philosophy, Plato believed in the existence of a world of Forms, which are abstract entities that exist independently of the physical world. He argued that the human soul, which he considered the seat of thought and reason, also exists in this non-physical realm. Therefore, he agreed with Descartes' definition of the mind as a distinct, non-physical entity.

Thomas Aquinas: Aquinas, a medieval philosopher, believed in the existence of an immaterial soul that is separate from the body and gives humans their rationality and ability to reason. He thus agreed with Descartes' definition of the mind as a pure substance that is distinct from the body.
Who Disagrees
Aristotle: Aristotle believed that the mind and body are not separate entities, but rather are two aspects of the same thing. He did not believe in the existence of a non-physical soul, but instead argued that the mind is the function of the body's biological and physiological processes. Therefore, he disagreed with Descartes' definition of the mind as a pure substance that is distinct from the body.

Thomas Hobbes: Hobbes, a philosopher who lived during the same time as Descartes, believed that the mind is not a separate entity but rather a function of the body. He argued that the mind is not a substance, but rather a series of motions in the brain. Therefore, he disagreed with Descartes' definition of the mind as a pure substance that is distinct from the body.
Simplify
Conclusion
Throughout history, philosophers have attempted to define the mind and understand how it functions. While each philosopher brings a unique perspective to the concept of mind, many agree that it is separate from the physical body and responsible for perception and cognition. Some, such as Anaxagoras and Plato, saw the mind as motion and language, respectively, while Aristotle and Seneca defined it as an independent substance and a way to contemplate the truth. Augustine believed the mind is responsible for gathering and collecting information, while Thomas Aquinas viewed it as incorporeal and subsistent. Michel de Montaigne described the mind as order, and Thomas Hobbes saw it as a train of thoughts and perspicuous words. Finally, René Descartes famously argued that the mind and body are completely separate substances, with the mind serving as the proof of existence.

Despite the diversity of perspectives, these definitions all highlight the essential role that the mind plays in shaping our understanding of ourselves and the world around us. While no singular definition can encompass all aspects of what the mind is, the incorporeal nature of the mind and its separation from the body are common themes. Additionally, many philosophers see the mind as responsible for our perception of the world, our ability to reason and think, and our ability to assign value to things. Ultimately, these definitions demonstrate the profound importance of the mind in shaping our understanding of the world and ourselves.
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