Plato

Short description: Ancient Greek philosopher (428/423 – 348/347 BC)

Plato

Roman copy of a portrait bust c. 370 BC

Born| 428/427 or 424/423 BC

Athens, Ancient Greece

Died| 348 BC (aged c. 75-76 or 79-80)

Athens, Greece

Notable work

* Euthyphro
* Apology
* Crito
* Phaedo
* Meno
* Protagoras
* Gorgias
* Symposium
* Phaedrus
* Parmenides
* Theaetetus
* Republic
* Timaeus
* Laws

Era| Ancient Greek philosophy
School| Platonic Academy
Notable students| Aristotle

Main interests

| Epistemology, Metaphysics
Political philosophy

Notable ideas

| Allegory of the cave

Cardinal virtues
Form of the Good
Theory of forms
Divisions of the soul
Platonic love

Platonic solids

Plato (/ˈpleɪtoʊ/ PLAY-toe;[1] Greek: Πλάτων Plátōn; 428/427 or 424/423 – 348 BC) was an ancient Greek philosopher born in Athens during the Classical period.

In Athens, Plato founded the Academy, a philosophical school where he taught the philosophical doctrines that would later become known as Platonism. Plato, or Platon, was a pen name derived, apparently, from the nickname given to him by his wrestling coach - allegedly a reference to his physical girth. According to Alexander Polyhistor, quoted by Diogenes Laërtius, his actual name was Aristocles, son of Ariston, of the deme (suburb) Collytus, in Athens.[2]

Plato was an innovator of the written dialogue and dialectic forms in philosophy. He raised problems for what became all the major areas of both theoretical philosophy and practical philosophy. His most famous contribution is the theory of forms (or ideas), which has been interpreted as advancing a solution to what is now known as the problem of universals. He is the namesake of Platonic love and the Platonic solids. His own most decisive philosophical influences are usually thought to have been, along with Socrates, the pre-Socratics Pythagoras, Heraclitus, and Parmenides, although few of his predecessors' works remain extant and much of what is known about these figures today derives from Plato himself.[lower-alpha 1]

Along with his teacher, Socrates, and student Aristotle, Plato is a central figure in the history of philosophy.[lower-alpha 2] Unlike the work of nearly all of his contemporaries, Plato's entire body of work is believed to have survived intact for over 2,400 years.[6] Although their popularity has fluctuated, Plato's works have consistently been read and studied.[7] Through Neoplatonism Plato also greatly influenced both Christian (through e.g. Augustine of Hippo) and Islamic philosophy (through e.g. Al-Farabi, Al-Kindi). In modern times, Alfred North Whitehead famously said: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato."[8]

## Contents

* 1 Biography
* 1.1 Name
* 2 Influences
* 2.1 Socrates
* 2.2 Pythagoreanism
* 2.3 Heraclitus and Parmenides
* 3 Philosophy
* 3.1 The Forms
* 3.2 The soul
* 3.3 Epistemology
* 3.4 Ethics
* 3.5 Politics
* 3.6 Rhetoric and poetry
* 4 Works
* 4.1 Themes
* 4.2 Textual sources and history
* 4.3 Authenticity
* 4.4 Chronology
* 5 Legacy
* 5.1 Unwritten doctrines
* 5.2 Modern reception
* 5.2.1 Criticism
* 6 Notes
* 7 References
* 7.1 Works cited
* 8 Further reading
* 9 External links

## Biography

Further information: Life of Plato

Little is known about Plato's early life and education. He belonged to an aristocratic and influential family.[9] Based on ancient sources, modern scholars believe he was born in Athens or Aegina, between 428[10] and 423 BC.[11] The exact time and place of birth are unknown. He was known to have worn earrings and finger rings during his youth as a sign of his noble descent.[12] The extent of Plato's affinity for jewelry while young was even characterized as "decadent" by Sextus Empiricus.[13] Plato gives little biographical information, but refers at various points to some of his relatives with a great degree of precision, including his brothers, Adeimantus, and Glaucon, in the Plato's Republic.[14] These and other references make it possible to reconstruct Plato's family tree.[15] Plato may have travelled in Italy, Sicily, Egypt, and Cyrene,[16] but at 40, Plato founded a school of philosophy in Athens, the Academy, on a plot of land in the Grove of Hecademus or Academus,[17] named after Academus, an Attic hero in Greek mythology. The Academy operated until it was destroyed by Sulla in 84 BC. Many philosophers studied at the Academy, the most prominent being Aristotle.[18][19] According to Diogenes Laertius, throughout his later life, Plato became entangled with the politics of the city of Syracuse, where he attempted to replace the tyrant Dionysius,[20] with Dionysius's brother-in-law, Dion of Syracuse, whom Plato had recruited as one of his followers, but the tyrant himself turned against Plato. Plato almost faced death, but was sold into slavery. Anniceris, a Cyrenaic philosopher, bought Plato's freedom for twenty minas,[21] and sent him home. After Dionysius's death, according to Plato's Seventh Letter, Dion requested Plato return to Syracuse to tutor Dionysius II, who seemed to accept Plato's teachings, but eventually became suspicious of their motives, expelling Dion and holding Plato against his will. Eventually Plato left Syracuse and Dion would return to overthrow Dionysius and rule Syracuse, before being usurped by Callippus, a fellow disciple of Plato. A variety of sources have given accounts of Plato's death. One story, based on a mutilated manuscript,[22] suggests Plato died in his bed, whilst a young Thracian girl played the flute to him.[23] Another tradition suggests Plato died at a wedding feast. The account is based on Diogenes Laertius's reference to an account by Hermippus, a third-century Alexandrian.[24] According to Tertullian, Plato simply died in his sleep.[24]

### Name

Plato was a wrestler

The fact that the philosopher called himself Platon in his maturity is indisputable, but the origin of this name remains mysterious. Platon is a nickname from the adjective platýs (πλατύς), meaning 'broad'. Although Platon was a fairly common name (31 instances are known from Athens alone),[25] the name does not occur in Plato's known family line.[26] The sources of Diogenes Laertius account for this by claiming his wrestling coach, Ariston of Argos, dubbed him "broad" on account of his chest and shoulders, or that Plato derived his name from the breadth of his eloquence, or his wide forehead.[27][28] While recalling a moral lesson about frugal living Seneca mentions the meaning of Plato's name: "His very name was given him because of his broad chest."[29] According to Diogenes Laertius,[30] his birth name was Aristocles (Ἀριστοκλῆς), meaning 'best reputation'.[lower-alpha 3]

## Influences

Plato was one of the devoted young followers of Socrates.

### Socrates

Main article: Philosophy:Socratic problem

Plato never speaks in his own voice in his dialogues; every dialogue except the Laws features Socrates, although many dialogues, including the Timaeus and Statesman, feature him speaking only rarely. Leo Strauss notes that Socrates' reputation for irony casts doubt on whether Plato's Socrates is expressing sincere beliefs.[31] Xenophon's Memorabilia and Aristophanes's The Clouds seem to present a somewhat different portrait of Socrates from the one Plato paints. Aristotle attributes a different doctrine with respect to Forms to Plato and Socrates.[32] Aristotle suggests that Socrates' idea of forms can be discovered through investigation of the natural world, unlike Plato's Forms that exist beyond and outside the ordinary range of human understanding.[33] The Socratic problem concerns how to reconcile these various accounts. The precise relationship between Plato and Socrates remains an area of contention among scholars.[34][page needed]

### Pythagoreanism

Main article: Philosophy:Pythagoreanism

The mathematical and mystical teachings of the followers of Pythagoras exerted a strong influence on Plato.

Although Socrates influenced Plato directly, the influence of Pythagoras, or in a broader sense, the Pythagoreans, such as Archytas also appears to have been significant. Aristotle and Cicero both claimed that the philosophy of Plato closely followed the teachings of the Pythagoreans.[35][36] According to R. M. Hare, this influence consists of three points:

1. The platonic Republic might be related to the idea of "a tightly organized community of like-minded thinkers", like the one established by Pythagoras in Croton.
2. The idea that mathematics and, generally speaking, abstract thinking is a secure basis for philosophical thinking as well as "for substantial theses in science and morals".
3. They shared a "mystical approach to the soul and its place in the material world".[37][38]

Pythagoras held that all things are number, and the cosmos comes from numerical principles. He introduced the concept of form as distinct from matter, and that the physical world is an imitation of an eternal mathematical world. These ideas were very influential on Heraclitus, Parmenides and Plato.[39][40]

### Heraclitus and Parmenides

Main articles: Biography:Heraclitus and Biography:Parmenides

Heraclitus (1628) by Hendrick ter Brugghen. Heraclitus saw a world in flux, with everything always in conflict, constantly changing.

Bust of Parmenides from Velia. Parmenides saw the world as eternal and unchanging, that all change was an illusion.

The two philosophers Heraclitus and Parmenides, influenced by earlier pre-Socratic Greek philosophers such as Pythagoras and Xenophanes,[41] departed from mythological explanations for the universe and began the metaphysical tradition that strongly influenced Plato and continues today.[40] Heraclitus viewed all things as continuously changing, that one cannot "step into the same river twice" due to the ever-changing waters flowing through it, and all things exist as a contraposition of opposites. According to Diogenes Laertius, Plato received these ideas through Heraclitus' disciple Cratylus.[42] Parmenides adopted an altogether contrary vision, arguing for the idea of a changeless, eternal universe and the view that change is an illusion.[40] Plato's most self-critical dialogue is the Parmenides, which features Parmenides and his student Zeno, which criticizes Plato's own metaphysical theories. Plato's Sophist dialogue includes an Eleatic stranger. These ideas about change and permanence, or becoming and Being, influenced Plato in formulating his theory of Forms.[42]

## Philosophy

Main article: Philosophy:Platonism

In Plato's dialogues, Socrates and his company of disputants had something to say on many subjects, including several aspects of metaphysics. These include religion and science, human nature, love, and sexuality. More than one dialogue contrasts perception and reality, nature and custom, and body and soul. Francis Cornford identified the "twin pillars of Platonism" as the theory of Forms, on the one hand, and, on the other hand, the doctrine of immortality of the soul.[43]

### The Forms

In the dialogues Socrates regularly asks for the meaning of a general term (e. g. justice, truth, beauty), and criticizes those who instead give him particular examples, rather than the quality shared by all examples. "Platonism" and its theory of Forms (also known as 'theory of Ideas;) denies the reality of the material world, considering it only an image or copy of the real world. According to this theory of Forms, there are these two kinds of things: the apparent world of material objects grasped by the senses, which constantly changes, and an unchanging and unseen world of Forms, grasped by reason (λογική). Plato's Forms represent types of things, as well as properties, patterns, and relations, which are referred to as objects. Just as individual tables, chairs, and cars refer to objects in this world, 'tableness', 'chairness', and 'carness', as well as e. g. justice, truth, and beauty refer to objects in another world. One of Plato's most cited examples for the Forms were the truths of geometry, such as the Pythagorean theorem. The theory of Forms is first introduced in the Phaedo dialogue (also known as On the Soul), wherein Socrates disputes the pluralism of Anaxagoras, then the most popular response to Heraclitus and Parmenides.

### The soul

For Plato, as was characteristic of ancient Greek philosophy, the soul was that which gave life.[44] Plato advocates a belief in the immortality of the soul, and several dialogues end with long speeches imagining the afterlife. In the Timaeus, Socrates locates the parts of the soul within the human body: Reason is located in the head, spirit in the top third of the torso, and the appetite in the middle third of the torso, down to the navel.[45][46]

Furthermore, Plato evinces a belief in the theory of reincarnation in multiple dialogues (such as the Phaedo and Timaeus). Scholars debate whether he intends the theory to be literally true, however.[47] He uses this idea of reincarnation to introduce the concept that knowledge is a matter of recollection of things acquainted with before one is born, and not of observation or study.[48] Keeping with the theme of admitting his own ignorance, Socrates regularly complains of his forgetfulness. In the Meno, Socrates uses a geometrical example to expound Plato's view that knowledge in this latter sense is acquired by recollection. Socrates elicits a fact concerning a geometrical construction from a slave boy, who could not have otherwise known the fact (due to the slave boy's lack of education). The knowledge must be of, Socrates concludes, an eternal, non-perceptible Form.

### Epistemology

Main article: Philosophy:Platonic epistemology

A Venn diagram illustrating the classical theory of knowledge

Plato also discusses several aspects of epistemology. In several dialogues, Socrates inverts the common man's intuition about what is knowable and what is real. Reality is unavailable to those who use their senses. Socrates says that he who sees with his eyes is blind. While most people take the objects of their senses to be real if anything is, Socrates is contemptuous of people who think that something has to be graspable in the hands to be real. In the Theaetetus, he says such people are eu amousoi (εὖ ἄμουσοι), an expression that means literally, "happily without the muses".[49] In other words, such people are willingly ignorant, living without divine inspiration and access to higher insights about reality. Many have interpreted Plato as stating - even having been the first to write - that knowledge is justified true belief, an influential view that informed future developments in epistemology.[50] Plato also identified problems with the justified true belief definition in the Theaetetus, concluding that justification (or an "account") would require knowledge of difference, meaning that the definition of knowledge is circular.[51][52]

In the Sophist, Statesman, Republic, Timaeus, and the Parmenides, Plato associates knowledge with the apprehension of unchanging Forms and their relationships to one another (which he calls "expertise" in dialectic), including through the processes of collection and division.[53] More explicitly, Plato himself argues in the Timaeus that knowledge is always proportionate to the realm from which it is gained. In other words, if one derives one's account of something experientially, because the world of sense is in flux, the views therein attained will be mere opinions. Meanwhile, opinions are characterized by a lack of necessity and stability. On the other hand, if one derives one's account of something by way of the non-sensible Forms, because these Forms are unchanging, so too is the account derived from them. That apprehension of Forms is required for knowledge may be taken to cohere with Plato's theory in the Theaetetus and Meno.[54] Indeed, the apprehension of Forms may be at the base of the account required for justification, in that it offers foundational knowledge which itself needs no account, thereby avoiding an infinite regression.[55]

What is justice?

### Ethics

See also: Form of the Good

Several dialogues discuss ethics including virtue and vice, pleasure and pain, crime and punishment, and justice and medicine. Socrates presents the famous Euthyphro dilemma in the dialogue of the same name: "Is the pious (τὸ ὅσιον) loved by the gods because it is pious, or is it pious because it is loved by the gods?" (10a) In the Protagoras dialogue it is argued through Socrates that virtue is innate and cannot be learned, that no one does bad on purpose, and to know what is good results in doing what is good; that knowledge is virtue. In the Republic, Plato poses the question, "What is justice?" and by examining both individual justice and the justice that informs societies, Plato is able not only to inform metaphysics, but also ethics and politics with the question: "What is the basis of moral and social obligation?" Plato's well-known answer rests upon the fundamental responsibility to seek wisdom, wisdom which leads to an understanding of the Form of the Good. Plato views "The Good" as the supreme Form, somehow existing even "beyond being". In this manner, justice is obtained when knowledge of how to fulfill one's moral and political function in society is put into practice.[56]

### Politics

Main article: Philosophy:Plato's political philosophy

File:POxy3679 Parts Plato Republic.jpgOxyrhynchus Papyri, with fragment of Plato's Republic

The dialogues also discuss politics. Some of Plato's most famous doctrines are contained in the Republic as well as in the Laws and the Statesman. Because these opinions are not spoken directly by Plato and vary between dialogues, they cannot be straightforwardly assumed as representing Plato's own views.

Socrates asserts that societies have a tripartite class structure corresponding to the appetite/spirit/reason structure of the individual soul. The appetite/spirit/reason are analogous to the castes of society.[57]

* Productive (Workers) – the labourers, carpenters, plumbers, masons, merchants, farmers, ranchers, etc. These correspond to the "appetite" part of the soul.
* Protective (Warriors or Guardians) – those who are adventurous, strong and brave; in the armed forces. These correspond to the "spirit" part of the soul.
* Governing (Rulers or Philosopher Kings) – those who are intelligent, rational, self-controlled, in love with wisdom, well suited to make decisions for the community. These correspond to the "reason" part of the soul and are very few.

According to Socrates, a state made up of different kinds of souls will, overall, decline from an aristocracy (rule by the best) to a timocracy (rule by the honourable), then to an oligarchy (rule by the few), then to a democracy (rule by the people), and finally to tyranny (rule by one person, rule by a tyrant).[58]

### Rhetoric and poetry

Several dialogues tackle questions about art, including rhetoric and rhapsody. Socrates says that poetry is inspired by the muses, and is not rational. He speaks approvingly of this, and other forms of divine madness (drunkenness, eroticism, and dreaming) in the Phaedrus,[59] and yet in the Republic wants to outlaw Homer's great poetry, and laughter as well. Scholars often view Plato's philosophy as at odds with rhetoric due to his criticisms of rhetoric in the Gorgias and his ambivalence toward rhetoric expressed in the Phaedrus. But other contemporary researchers contest the idea that Plato despised rhetoric and instead view his dialogues as a dramatization of complex rhetorical principles.[60][61][62] Plato made abundant use of mythological narratives in his own work;[63] It is generally agreed that the main purpose for Plato in using myths was didactic.[64] He considered that only a few people were capable or interested in following a reasoned philosophical discourse, but men in general are attracted by stories and tales. Consequently, then, he used the myth to convey the conclusions of the philosophical reasoning.[65] Notable examples include the story of Atlantis, the Myth of Er, and the Allegory of the Cave.

## Works

### Themes

Painting of a scene from Plato's Symposium (Anselm Feuerbach, 1873)

Plato never presents himself as a participant in any of the dialogues, and with the exception of the Apology, there is no suggestion that he heard any of the dialogues firsthand. Some dialogues have no narrator but have a pure "dramatic" form, some dialogues are narrated by Socrates himself, who speaks in the first person. The Symposium is narrated by Apollodorus, a Socratic disciple, apparently to Glaucon. Apollodorus assures his listener that he is recounting the story, which took place when he himself was an infant, not from his own memory, but as remembered by Aristodemus, who told him the story years ago. The Theaetetus is also a peculiar case: a dialogue in dramatic form embedded within another dialogue in dramatic form. Some scholars take this as an indication that Plato had by this date wearied of the narrated form.[66] In most of the dialogues, the primary speaker is Socrates, who employs a method of questioning which proceeds by a dialogue form called dialectic. The role of dialectic in Plato's thought is contested but there are two main interpretations: a type of reasoning and a method of intuition.[67] Simon Blackburn adopts the first, saying that Plato's dialectic is "the process of eliciting the truth by means of questions aimed at opening out what is already implicitly known, or at exposing the contradictions and muddles of an opponent's position."[67] Karl Popper, on the other hand, claims that dialectic is the art of intuition for "visualising the divine originals, the Forms or Ideas, of unveiling the Great Mystery behind the common man's everyday world of appearances."[68]

### Textual sources and history

Volume 3, pp. 32–33, of the 1578 Stephanus edition of Plato, showing a passage of Timaeus with the Latin translation and notes of Jean de Serres

During the early Renaissance, the Greek language and, along with it, Plato's texts were reintroduced to Western Europe by Byzantine scholars. Some 250 known manuscripts of Plato survive.[69] In September or October 1484 Filippo Valori and Francesco Berlinghieri printed 1025 copies of Ficino's translation, using the printing press at the Dominican convent S.Jacopo di Ripoli.[70] The 1578 edition[71] of Plato's complete works published by Henricus Stephanus (Henri Estienne) in Geneva also included parallel Latin translation and running commentary by Joannes Serranus (Jean de Serres). It was this edition which established standard Stephanus pagination, still in use today.[72] The text of Plato as received today apparently represents the complete written philosophical work of Plato, based on the first century AD arrangement of Thrasyllus of Mendes.[73][74] The modern standard complete English edition is the 1997 Hackett Plato, Complete Works, edited by John M. Cooper.[75][76]

### Authenticity

Thirty-five dialogues and thirteen letters (the Epistles) have traditionally been ascribed to Plato, though modern scholarship doubts the authenticity of at least some of these. Jowett[77] mentions in his Appendix to Menexenus, that works which bore the character of a writer were attributed to that writer even when the actual author was unknown. The works taken as genuine in antiquity but are now doubted by at least some modern scholars are: Alcibiades I (*),[lower-alpha 4] Alcibiades II (‡), Clitophon (*), Epinomis (‡), Letters (*), Hipparchus (‡), Menexenus (*), Minos (‡), Lovers (‡), Theages (‡) The following works were transmitted under Plato's name in antiquity, but were already considered spurious by the 1st century AD: Axiochus, Definitions, Demodocus, Epigrams, Eryxias, Halcyon, On Justice, On Virtue, Sisyphus.

### Chronology

No one knows the exact order Plato's dialogues were written in, nor the extent to which some might have been later revised and rewritten. The works are usually grouped into Early (sometimes by some into Transitional), Middle, and Late period; The following represents one relatively common division.[78]

* Early: Apology, Charmides, Crito, Euthyphro, Gorgias, Hippias Minor, Hippias Major, Ion, Laches, Lysis, Protagoras
* Middle: Cratylus, Euthydemus, Meno, Parmenides, Phaedo, Phaedrus, Republic, Symposium, Theatetus
* Late: Critias, Sophist, Statesman, Timaeus, Philebus, Laws.[79]

Whereas those classified as "early dialogues" often conclude in aporia, the so-called "middle dialogues" provide more clearly stated positive teachings that are often ascribed to Plato such as the theory of Forms. The remaining dialogues are classified as "late" and are generally agreed to be difficult and challenging pieces of philosophy.[80] It should, however, be kept in mind that many of the positions in the ordering are still highly disputed, and also that the very notion that Plato's dialogues can or should be "ordered" is by no means universally accepted,[81][lower-alpha 5] though Plato's works are still often characterized as falling at least roughly into three groups stylistically.[3]

## Legacy

Plato's Academy mosaic in the villa of T. Siminius Stephanus in Pompeii, around 100 BC to 100 CE

### Unwritten doctrines

Main articles: Philosophy:Plato's unwritten doctrines and Philosophy:Allegorical interpretations of Plato

Plato's unwritten doctrines are,[83][84][85] according to some ancient sources, the most fundamental metaphysical teaching of Plato, which he disclosed only orally, and some say only to his most trusted fellows, and which he may have kept secret from the public, although many modern scholars[who?] doubt these claims. A reason for not revealing it to everyone is partially discussed in Phaedrus where Plato criticizes the written transmission of knowledge as faulty, favouring instead the spoken logos: "he who has knowledge of the just and the good and beautiful ... will not, when in earnest, write them in ink, sowing them through a pen with words, which cannot defend themselves by argument and cannot teach the truth effectually."[86] It is, however, said that Plato once disclosed this knowledge to the public in his lecture On the Good (Περὶ τἀγαθοῦ), in which the Good (τὸ ἀγαθόν) is identified with the One (the Unity, τὸ ἕν), the fundamental ontological principle.

The first witness who mentions its existence is Aristotle, who in his Physics writes: "It is true, indeed, that the account he gives there [i.e. in Timaeus] of the participant is different from what he says in his so-called unwritten teachings (Template:Transl-grc)."[87] In Metaphysics he writes: "Now since the Forms are the causes of everything else, he [i.e. Plato] supposed that their elements are the elements of all things. Accordingly, the material principle is the Great and Small [i.e. the Dyad], and the essence is the One (τὸ ἕν), since the numbers are derived from the Great and Small by participation in the One".[88] "From this account it is clear that he only employed two causes: that of the essence, and the material cause; for the Forms are the cause of the essence in everything else, and the One is the cause of it in the Forms. He also tells us what the material substrate is of which the Forms are predicated in the case of sensible things, and the One in that of the Forms - that it is this the duality (the Dyad, ἡ δυάς), the Great and Small (τὸ μέγα καὶ τὸ μικρόν). Further, he assigned to these two elements respectively the causation of good and of evil".[88]

The most important aspect of this interpretation of Plato's metaphysics is the continuity between his teaching and the Neoplatonic interpretation of Plotinus[lower-alpha 6] or Ficino[lower-alpha 7] which has been considered erroneous by many but may in fact have been directly influenced by oral transmission of Plato's doctrine. A modern scholar who recognized the importance of the unwritten doctrine of Plato was Heinrich Gomperz who described it in his speech during the 7th International Congress of Philosophy in 1930.[89] All the sources related to the ἄγραφα δόγματα have been collected by Konrad Gaiser and published as Testimonia Platonica.[90]

### Modern reception

Plato's thought is often compared with that of his most famous student, Aristotle, whose reputation during the Western Middle Ages so completely eclipsed that of Plato that the Scholastic philosophers referred to Aristotle as "the Philosopher". The only Platonic work known to western scholarship was Timaeus, until translations were made after the fall of Constantinople, which occurred during 1453.[91] However, the study of Plato continued in the Byzantine Empire, the Caliphates during the Islamic Golden Age, and Spain during Golden age of Jewish culture. During the early Islamic era, Persian, Arab, and Jewish scholars translated much of Plato into Arabic and wrote commentaries and interpretations on Plato's, Aristotle's and other Platonist philosophers' works (see Al-Kindi, Al-Farabi, Avicenna, Averroes, Hunayn ibn Ishaq). Plato is also referenced by Jewish philosopher and Talmudic scholar Maimonides in his The Guide for the Perplexed. Many of these commentaries on Plato were translated from Arabic into Latin and as such influenced Medieval scholastic philosophers.[92]

The School of Athens fresco by Raphael features Plato (left) also as a central figure, holding his Timaeus while he gestures to the heavens. Aristotle (right) gestures to the earth while holding a copy of his Nicomachean Ethics in his hand.

During the Renaissance, George Gemistos Plethon brought Plato's original writings to Florence from Constantinople in the century of its fall. Many of the greatest early modern scientists and artists who broke with Scholasticism, with the support of the Plato-inspired Lorenzo (grandson of Cosimo), saw Plato's philosophy as the basis for progress in the arts and sciences. The 17th century Cambridge Platonists, sought to reconcile Plato's more problematic beliefs, such as metempsychosis and polyamory, with Christianity.[93] By the 19th century, Plato's reputation was restored, and at least on par with Aristotle's. Plato's influence has been especially strong in mathematics and the sciences. Plato's resurgence further inspired some of the greatest advances in logic since Aristotle, primarily through Gottlob Frege. Albert Einstein suggested that the scientist who takes philosophy seriously would have to avoid systematization and take on many different roles, and possibly appear as a Platonist or Pythagorean, in that such a one would have "the viewpoint of logical simplicity as an indispensable and effective tool of his research."[94] British philosopher Alfred N. Whitehead is often misquoted of uttering the famous saying of “All of Western philosophy is a footnote to Plato.”.[95]

#### Criticism

Many recent philosophers have also diverged from what some would describe as ideals characteristic of traditional Platonism. Friedrich Nietzsche notoriously attacked Plato's "idea of the good itself" along with many fundamentals of Christian morality, which he interpreted as "Platonism for the masses" in Beyond Good and Evil (1886). Martin Heidegger argued against Plato's alleged obfuscation of Being in his incomplete tome, Being and Time (1927), and the philosopher of science Karl Popper argued in the first volume of The Open Society and Its Enemies (1945) that Plato's alleged proposal for a utopian political regime in the Republic was prototypically totalitarian. Edmund Gettier famously demonstrated the problems of the justified true belief account of knowledge. That the modern theory of justified true belief as knowledge, which Gettier addresses, is equivalent to Plato's is accepted by some scholars but rejected by others.[96]

## Notes

1. ↑ "Though influenced primarily by Socrates, to the extent that Socrates is usually the main character in many of Plato's writings, he was also influenced by Heraclitus, Parmenides, and the Pythagoreans"[3]
2. ↑ "...the subject of philosophy, as it is often conceived - a rigorous and systematic examination of ethical, political, metaphysical, and epistemological issues, armed with a distinctive method - can be called his invention."[4][5]
3. ↑ From aristos and kleos
4. ↑ (*) if there is no consensus among scholars as to whether Plato is the author, and (‡) if most scholars agree that Plato is not the author of the work. The extent to which scholars consider a dialogue to be authentic is noted in Cooper 1997, pp. v–vi.
5. ↑ Increasingly in the most recent Plato scholarship, writers are skeptical of the notion that the order of Plato's writings can be established with any precision.[82]
6. ↑ Plotinus describes this in the last part of his final Ennead (VI, 9) entitled On the Good, or the One (Περὶ τἀγαθοῦ ἢ τοῦ ἑνός). Jens Halfwassen states in Der Aufstieg zum Einen' (2006) that "Plotinus' ontology - which should be called Plotinus' henology - is a rather accurate philosophical renewal and continuation of Plato's unwritten doctrine, i.e. the doctrine rediscovered by Krämer and Gaiser."
7. ↑ In one of his letters (Epistolae 1612) Ficino writes: "The main goal of the divine Plato ... is to show one principle of things, which he called the One (τὸ ἕν)", cf. Montoriola 1926, p. 147.

## References

1. ↑ Jones 2006.
2. ↑ "Plato FAQ: Plato's real name". https://www.plato-dialogues.org/faq/faq005.htm.
3. ↑ 3.0 3.1 Brickhouse|Smith}}|Brickhouse & Smith.
4. ↑ Kraut 2013
5. ↑ "Plato and Aristotle: How Do They Differ?". Britannica. https://www.britannica.com/story/plato-and-aristotle-how-do-they-differ. "Plato (c. 428–c. 348 BCE) and Aristotle (384–322 BCE) are generally regarded as the two greatest figures of Western philosophy".
6. ↑ Cooper, John M.; Hutchinson, D.S., eds. (1997): "Introduction."
7. ↑ Cooper 1997, p. vii.
8. ↑ Whitehead 1978, p. 39.
9. ↑ Diogenes Laertius, Life of Plato, III
• Nails 2002, p. 53
Wilamowitz-Moellendorff 2005, p. 46
10. ↑ Wilamowitz-Moellendorff 2005, p. 46.
11. ↑ Nails 2002, p. 246.
12. ↑ Notopoulos, James A. (1940). "Porphyry's Life of Plato". Classical Philology 35 (3): 284–293. doi:10.1086/362396. ISSN 0009-837X. https://www.jstor.org/stable/264394.
13. ↑ Veres, Máté (2019-01-01). "Sextus Empiricus, Against Those in the Disciplines. Translated with an introduction and notes by Richard Bett (Oxford University Press, 2018)". International Journal for the Study of Skepticism. https://www.academia.edu/39520412.
14. ↑ Guthrie 1986, p. 11.
15. ↑ Kahn 1996, p. 186.
16. ↑ McEvoy 1984.
17. ↑ Cairns 1961, p. xiii.
18. ↑ Dillon 2003, pp. 1–3.
19. ↑ Press 2000, p. 1.
20. ↑ Riginos 1976, p. 73.
21. ↑ Diogenes Laertius, Book iii, 20
22. ↑ Riginos 1976, p. 194.
23. ↑ Schall 1996.
24. ↑ 24.0 24.1 Riginos 1976, p. 195.
25. ↑ Guthrie 1986, p. 12 (footnote).
26. ↑ Sedley, David, Plato's Cratylus, Cambridge University Press 2003, pp. 21–22 .
27. ↑ Diogenes Laertius, Life of Plato, IV
28. ↑ Notopoulos 1939, p. 135
29. ↑ Seneca, Epistulae, VI 58:29–30; translation by Robert Mott Gummere
30. ↑ Laërtius 1925, § 4.
31. ↑ Strauss 1964, pp. 50–51.
32. ↑ Metaphysics 987b1–11
33. ↑ McPherran, M.L. (1998). The Religion of Socrates. Penn State Press. p. 268.
34. ↑ Vlastos 1991.
35. ↑ Metaphysics, 1.6.1 (987a)
36. ↑ Tusc. Disput. 1.17.39.
37. ↑ R.M. Hare, Plato in C.C.W. Taylor, R.M. Hare and Jonathan Barnes, Greek Philosophers, Socrates, Plato, and Aristotle, Oxford: Oxford University Press, 1999 (1982), 103–189, here 117–119.
38. ↑ Russell, Bertrand (1991). History of Western Philosophy. Routledge. pp. 120–124. ISBN 978-0-415-07854-2.
39. ↑ Calian, Florin George (2021) (in en). Numbers, Ontologically Speaking: Plato on Numerosity. Brill. ISBN 978-90-04-46722-4. https://brill.com/display/book/9789004467224/BP000010.xml.
40. ↑ 40.0 40.1 40.2 McFarlane, Thomas J.. "Plato's Parmenides". http://www.integralscience.org/platoparmenides.html.
41. ↑ John Palmer (2019). "Parmenides". Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University. https://plato.stanford.edu/entries/parmenides. Retrieved 18 October 2017.
42. ↑ 42.0 42.1 Large, William. "Heraclitus". http://www.arasite.org/WLnew/Greeks/heraclitus.html.
43. ↑ Francis Cornford, 1941. The Republic of Plato. Oxford: Oxford University Press. pp. xxv.
44. ↑ See this brief exchange from the Phaedo: "What is it that, when present in a body, makes it living? – A soul." Phaedo 105c.
45. ↑ Plato, Timaeus 44d & 70
46. ↑ Dorter 2006, p. 360.
47. ↑ Jorgensen 2018 is perhaps the strongest opponent to interpretations on which Plato intends the theory literally. See Jorgensen, The Embodied Soul in Plato's Later Thought. Cambridge: Cambridge University Press, 2018.
48. ↑ Baird & Kaufmann 2008.
49. ↑ Theaetetus 156a
50. ↑ Fine 2003, p. 5.
51. ↑ Theaetetus 210a–b
52. ↑ McDowell 1973, p. 256.
53. ↑ Taylor 2011, pp. 176–187.
54. ↑ Lee 2011, p. 432.
55. ↑ Taylor 2011, p. 189.
56. ↑ Republic, Book IV.
57. ↑ Blössner 2007, pp. 345–349.
58. ↑ Blössner 2007, p. 350.
59. ↑ Phaedrus (265a–c)
60. ↑ Kastely, James (2015) (in en). The Rhetoric of Plato's Republic. Chicago UP. https://press.uchicago.edu/ucp/books/book/chicago/R/bo20698062.html.
61. ↑ Bjork, Collin (2021). "Plato, Xenophon, and the Uneven Temporalities of Ethos in the Trial of Socrates". Philosophy & Rhetoric 54 (3): 240–262. doi:10.5325/philrhet.54.3.0240. ISSN 0031-8213. https://www.jstor.org/stable/10.5325/philrhet.54.3.0240.
62. ↑ Bengtson, Erik (2019). The epistemology of rhetoric: Plato, doxa and post-truth. Uppsala.
63. ↑ Chappel, Timothy. "Mythos and Logos in Plato". Open University. https://www.academia.edu/10450689.
64. ↑ Jorgensen, Chad. The Embodied Soul in Plato's Later Thought. Cambridge: Cambridge University Press, 2018 page 199.
65. ↑ Partenie, Catalin. "Plato's Myths". https://plato.stanford.edu/entries/plato-myths/.
66. ↑ Burnet 1928a, § 177.
67. ↑ 67.0 67.1 Blackburn 1996, p. 104.
68. ↑ Popper 1962, p. 133.
69. ↑ Brumbaugh & Wells 1989.
70. ↑ Allen 1975, p. 12.
71. ↑ Platonis opera quae extant omnia edidit Henricus Stephanus, Genevae, 1578.
72. ↑ Suzanne 2009.
73. ↑ Cooper 1997, pp. viii–xii.
74. ↑ Irwin 2011, pp. 64 & 74
75. ↑ Fine 1999a, p. 482.
76. ↑ Complete Works – Philosophy
77. ↑ B Jowett, Menexenus: Appendix I (1st paragraph) .
78. ↑ See Guthrie 1986; Vlastos 1991; Penner 1992; Kahn 1996; Fine 1999b.
79. ↑ Dodds 2004.
80. ↑ Cooper 1997, p. xiv.
81. ↑ Cooper 1997.
82. ↑ Kraut 2013; Schofield 2002; and Rowe 2006.
83. ↑ Rodriguez-Grandjean 1998.
84. ↑ Reale 1990. Cf. p. 14 and onwards.
85. ↑ Krämer 1990. Cf. pp. 38–47.
86. ↑ Phaedrus 276c
87. ↑ Physics 209b
88. ↑ 88.0 88.1 Metaphysics 987b
89. ↑ Gomperz 1931.
90. ↑ Gaiser 1998.
91. ↑ C.U. M.Smith – Brain, Mind and Consciousness in the History of Neuroscience (page 1) Springer Science & Business, 1 January 2014, 374 pages, Volume 6 of History, philosophy and theory of the life sciences SpringerLink : Bücher ISBN 94-017-8774-3 [Retrieved 27 June 2015]
92. ↑ See Burrell 1998 and Hasse 2002, pp. 33–45.
93. ↑ Carrigan, Henry L. Jr. (2012) [2011]. "Cambridge Platonists". The Encyclopedia of Christian Civilization. Chichester, West Sussex: Wiley-Blackwell. doi:10.1002/9780470670606.wbecc0219. ISBN 978-1405157629.
94. ↑ Einstein 1949, pp. 683–684.
95. ↑ "A.N Whitehead on Plato". https://www.college.columbia.edu/core/content/whitehead-plato.
96. ↑ Fine 1979, p. 366.

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## Further reading

* Alican, Necip Fikri (2012). Rethinking Plato: A Cartesian Quest for the Real Plato. Amsterdam and New York: Editions Rodopi B.V.. ISBN 978-90-420-3537-9.
* Allen, R. E. (1965). Studies in Plato's Metaphysics II. Taylor & Francis. ISBN 0-7100-3626-4
* Ambuel, David (2007). Image and Paradigm in Plato's Sophist. Parmenides Publishing. ISBN 978-1-930972-04-9
* Anderson, Mark; Osborn, Ginger (2009). Approaching Plato: A Guide to the Early and Middle Dialogues. Nashville: Belmont University. http://campus.belmont.edu/philosophy/Book.pdf.
* Arieti, James A. Interpreting Plato: The Dialogues as Drama, Rowman & Littlefield Publishers, Inc. ISBN 0-8476-7662-5
* Barrow, Robin (2007). Plato: Continuum Library of Educational Thought. Continuum. ISBN 978-0-8264-8408-6.
* Cooper, John M.; Hutchinson, D.S., eds (1997). Plato: Complete Works. Hackett Publishing Company, Inc. ISBN 978-0-87220-349-5. https://archive.org/details/completeworks00plat.
* Corlett, J. Angelo (2005). Interpreting Plato's Dialogues. Parmenides Publishing. ISBN 978-1-930972-02-5
* Field, G.C. (1969). The Philosophy of Plato (2nd ed. with an appendix by Cross, R.C. ed.). London: Oxford University Press. ISBN 978-0-19-888040-0.
* Fine, Gail (2000). Plato 1: Metaphysics and Epistemology Oxford University Press, US, ISBN 0-19-875206-7
* Finley, M.I. (1969). Aspects of antiquity: Discoveries and Controversies The Viking Press, Inc., US
* Garvey, James (2006). Twenty Greatest Philosophy Books. Continuum. ISBN 978-0-8264-9053-7. https://archive.org/details/twentygreatestph00garv.
* Guthrie, W.K.C. (1986). A History of Greek Philosophy (Plato – The Man & His Dialogues – Earlier Period), Cambridge University Press, ISBN 0-521-31101-2
* Guthrie, W.K.C. (1986). A History of Greek Philosophy (Later Plato & the Academy) Cambridge University Press, ISBN 0-521-31102-0
* Havelock, Eric (2005). Preface to Plato (History of the Greek Mind), Belknap Press, ISBN 0-674-69906-8
* Hamilton, Edith; Cairns, Huntington, eds (1961). The Collected Dialogues of Plato, Including the Letters. Princeton Univ. Press. ISBN 978-0-691-09718-3. https://archive.org/details/collecteddialogu00tred.
* Harvard University Press publishes the hardbound series Loeb Classical Library, containing Plato's works in Greek, with English translations on facing pages.
* Irvine, Andrew David (2008). Socrates on Trial: A play based on Aristophanes' Clouds and Plato's Apology, Crito, and Phaedo, adapted for modern performance. Toronto: University of Toronto Press. ISBN 978-0-8020-9783-5
* Hermann, Arnold (2010). Plato's Parmenides: Text, Translation & Introductory Essay, Parmenides Publishing, ISBN 978-1-930972-71-1
* Irwin, Terence (1995). Plato's Ethics, Oxford University Press, US, ISBN 0-19-508645-7
* Jackson, Roy (2001). Plato: A Beginner's Guide. London: Hoder & Stroughton. ISBN 978-0-340-80385-1.
* Kochin, Michael S. (2002). Gender and Rhetoric in Plato's Political Thought. Cambridge Univ. Press. ISBN 978-0-521-80852-1.
* Kraut, Richard, ed (1993). The Cambridge Companion to Plato. Cambridge University Press. ISBN 978-0-521-43610-6. https://archive.org/details/isbn_9780521436106.
* LeMoine, Rebecca (2020). Plato's Caves: The Liberating Sting of Cultural Diversity. New York: Oxford University Press. ISBN 978-0190936983.
* Lilar, Suzanne (1954), Journal de l'analogiste, Paris, Éditions Julliard; Reedited 1979, Paris, Grasset. Foreword by Julien Gracq
* Lilar, Suzanne (1963), Le couple, Paris, Grasset. Translated as Aspects of Love in Western Society in 1965, with a foreword by Jonathan Griffin London, Thames and Hudson.
* Lilar, Suzanne (1967) A propos de Sartre et de l'amour , Paris, Grasset.
* Lundberg, Phillip (2005). Tallyho – The Hunt for Virtue: Beauty, Truth and Goodness Nine Dialogues by Plato: Pheadrus, Lysis, Protagoras, Charmides, Parmenides, Gorgias, Theaetetus, Meno & Sophist. Authorhouse. ISBN 978-1-4184-4977-3.
* Márquez, Xavier (2012) A Stranger's Knowledge: Statesmanship, Philosophy & Law in Plato's Statesman, Parmenides Publishing. ISBN 978-1-930972-79-7
* Melchert, Norman (2002). The Great Conversation: A Historical Introduction to Philosophy. McGraw Hill. ISBN 978-0-19-517510-3. https://archive.org/details/greatconversatio00norm.
* Miller, Mitchell (2004). The Philosopher in Plato's Statesman. Parmenides Publishing. ISBN 978-1-930972-16-2
* Mohr, Richard D. (2006). God and Forms in Plato – and other Essays in Plato's Metaphysics. Parmenides Publishing. ISBN 978-1-930972-01-8
* Mohr, Richard D. (Ed.), Sattler, Barbara M. (Ed.) (2010) One Book, The Whole Universe: Plato's Timaeus Today, Parmenides Publishing. ISBN 978-1-930972-32-2
* Moore, Edward (2007). Plato. Philosophy Insights Series. Tirril, Humanities-Ebooks. ISBN 978-1-84760-047-9
* Nightingale, Andrea Wilson. (1995). "Genres in Dialogue: Plato and the Construct of Philosophy", Cambridge University Press. ISBN 0-521-48264-X
* Oxford University Press publishes scholarly editions of Plato's Greek texts in the Oxford Classical Texts series, and some translations in the Clarendon Plato Series.
* Patterson, Richard (Ed.), Karasmanis, Vassilis (Ed.), Hermann, Arnold (Ed.) (2013) Presocratics & Plato: Festschrift at Delphi in Honor of Charles Kahn, Parmenides Publishing. ISBN 978-1-930972-75-9
* Piechowiak, Marek (2019). Plato's Conception of Justice and the Question of Human Dignity. Peter Lang: Berlin. ISBN 978-3-631-65970-0.
* Sallis, John (1996). Being and Logos: Reading the Platonic Dialogues. Indiana University Press. ISBN 978-0-253-21071-5.
* Sallis, John (1999). Chorology: On Beginning in Plato's "Timaeus". Indiana University Press. ISBN 978-0-253-21308-2.
* Sayre, Kenneth M. (2005). Plato's Late Ontology: A Riddle Resolved. Parmenides Publishing. ISBN 978-1-930972-09-4
* Seung, T.K. (1996). Plato Rediscovered: Human Value and Social Order. Rowman and Littlefield. ISBN 0-8476-8112-2
* Smith, William. (1867). Dictionary of Greek and Roman Biography and Mythology. University of Michigan/Online version.
* Stewart, John. (2010). Kierkegaard and the Greek World – Socrates and Plato. Ashgate. ISBN 978-0-7546-6981-4
* Thesleff, Holger (2009). Platonic Patterns: A Collection of Studies by Holger Thesleff, Parmenides Publishing, ISBN 978-1-930972-29-2
* Vlastos, Gregory (1981). Platonic Studies, Princeton University Press, ISBN 0-691-10021-7
* Vlastos, Gregory (2006). Plato's Universe – with a new Introduction by Luc Brisson, Parmenides Publishing. ISBN 978-1-930972-13-1
* Zuckert, Catherine (2009). Plato's Philosophers: The Coherence of the Dialogues, The University of Chicago Press, ISBN 978-0-226-99335-5

## External links

Library resources about
Plato

* * *

* Online books
* Resources in your library
* Resources in other libraries

By Plato

* Online books
* Resources in your library
* Resources in other libraries

* Works available online:
* Works by Plato in eBook form at Standard Ebooks
* Template:PerseusAuthor – Greek & English hyperlinked text
* Works by Plato at Project Gutenberg
* Error in Template:Internet Archive author: Plato doesn't exist.
* Works by Plato at LibriVox (public domain audiobooks)
* Internet Encyclopedia of Philosophy
* Stanford Encyclopedia of Philosophy
* Other resources:
* Plato at the Indiana Philosophy Ontology Project
* Plato at PhilPapers
* "Plato and Platonism". Catholic Encyclopedia. 1913.

Articles related to Plato

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* e

Ancient Greek schools of philosophy

Pre-Socratic|

| Schools|

* Atomism
* Eleatics
* Ionian
* Ephesian
* Milesian
* Pluralism
* Pythagoreanism
* Sophistic

|

Philosophers|

* Anaxagoras
* Anaximander
* Anaximenes
* Democritus
* Empedocles
* Heraclitus
* Leucippus
* Melissus
* Parmenides
* Protagoras
* Pythagoras
* Thales
* Zeno of Elea

Socratic|

| Schools|

* Cynicism
* Cyrenaics
* Eretrian
* Megarian
* Peripateticism
* Platonism

|

Philosophers|

* Antisthenes
* Aristippus
* Aristotle
* Diogenes of Sinope
* Euclid of Megara
* Phaedo of Elis
* Plato
* Socrates

Hellenistic|

| Schools|

* Academic skepticism
* Epicureanism
* Neoplatonism
* Neopythagoreanism
* Pyrrhonism
* Stoicism

|

Philosophers|

* Apollonius of Tyana
* Arcesilaus
* Augustine
* Carneades
* Epictetus
* Epicurus
* Lucretius
* Plotinus
* Proclus
* Pyrrho
* Sextus Empiricus
* Zeno of Citium

* v
* t
* e

Epistemology

Epistemologists|

* Thomas Aquinas
* Augustine of Hippo
* William Alston
* Robert Audi
* A. J. Ayer
* George Berkeley
* Laurence BonJour
* René Descartes
* John Dewey
* Fred Dretske
* Edmund Gettier
* Alvin Goldman
* Nelson Goodman
* Paul Grice
* David Hume
* Immanuel Kant
* Søren Kierkegaard
* Saul Kripke
* David Lewis
* John Locke
* G. E. Moore
* Robert Nozick
* Alvin Plantinga
* Plato
* Duncan Pritchard
* Hilary Putnam
* Thomas Reid
* Gilbert Ryle
* Susanna Siegel
* Socrates
* Ernest Sosa
* P. F. Strawson
* Willard Van Orman Quine
* Bertrand Russell
* Baruch Spinoza
* Timothy Williamson
* Ludwig Wittgenstein
* Nicholas Wolterstorff
* Vienna Circle

Theories|

* Coherentism
* Constructivist epistemology
* Contextualism
* Descriptive knowledge
* Determinism
* Empiricism
* Evolutionary epistemology
* Fallibilism
* Feminist epistemology
* Fideism
* Foundationalism
* Genetic epistemology
* Hierarchical epistemology
* Holism
* Infinitism
* Innatism
* Internalism and externalism
* Naïve realism
* Naturalized epistemology
* Phenomenalism
* Positivism
* Procedural knowledge
* Reductionism
* Reliabilism
* Representative realism
* Rationalism
* Skepticism
* Theory of forms
* Transcendental idealism
* Uniformitarianism

Concepts|

* A priori knowledge
* Analysis
* Analytic–synthetic distinction
* Belief
* Causality
* Common sense
* Exploratory thought
* Gettier problem
* Justification
* Knowledge
* Induction
* Objectivity
* Privileged access
* Problem of induction
* Problem of other minds
* Perception
* Proposition
* Regress argument
* Simplicity
* Speculative reason
* Truth
* more...

Related articles|

* Outline of epistemology
* Alethiology
* Faith and rationality
* Formal epistemology
* Meta-epistemology
* Philosophy of perception
* Philosophy of science
* Social epistemology

* Category
* Task Force
* Stubs
* Discussion

* v
* t
* e

Metaphysics

Metaphysicians|

* Parmenides
* Plato
* Aristotle
* Plotinus
* Duns Scotus
* Thomas Aquinas
* Francisco Suárez
* Nicolas Malebranche
* René Descartes
* John Locke
* David Hume
* Thomas Reid
* Immanuel Kant
* Isaac Newton
* Arthur Schopenhauer
* Baruch Spinoza
* Georg W. F. Hegel
* George Berkeley
* Gottfried Wilhelm Leibniz
* Henri Bergson
* Friedrich Nietzsche
* Charles Sanders Peirce
* Joseph Maréchal
* Ludwig Wittgenstein
* Martin Heidegger
* Alfred N. Whitehead
* Bertrand Russell
* Dorothy Emmet
* G. E. Moore
* Jean-Paul Sartre
* Gilbert Ryle
* Hilary Putnam
* P. F. Strawson
* R. G. Collingwood
* Adolph Stöhr
* Rudolf Carnap
* Saul Kripke
* Willard V. O. Quine
* G. E. M. Anscombe
* Donald Davidson
* Michael Dummett
* David Malet Armstrong
* David Lewis
* Alvin Plantinga
* Peter van Inwagen
* Derek Parfit
* more ...

Theories|

* Abstract object theory
* Action theory
* Anti-realism
* Determinism
* Dualism
* Enactivism
* Essentialism
* Existentialism
* Free will
* Idealism
* Libertarianism
* Liberty
* Materialism
* Meaning of life
* Monism
* Naturalism
* Nihilism
* Phenomenalism
* Realism
* Physicalism
* Pirsig's Metaphysics of Quality
* Platonic idealism
* Relativism
* Scientific realism
* Solipsism
* Subjectivism
* Substance theory
* Truthmaker theory
* Type theory

Concepts|

* Abstract object
* Anima mundi
* Being
* Category of being
* Causality
* Causal closure
* Choice
* Cogito, ergo sum
* Concept
* Embodied cognition
* Essence
* Existence
* Experience
* Hypostatic abstraction
* Idea
* Identity
* Information
* Insight
* Intelligence
* Intention
* Linguistic modality
* Matter
* Meaning
* Memetics
* Mental representation
* Mind
* Motion
* Nature
* Necessity
* Notion
* Object
* Pattern
* Perception
* Physical object
* Principle
* Property
* Qualia
* Quality
* Reality
* Soul
* Subject
* Substantial form
* Thought
* Time
* Truth
* Type–token distinction
* Universal
* Unobservable
* Value
* more ...

Related topics|

* Axiology
* Cosmology
* Epistemology
* Feminist metaphysics
* Interpretations of quantum mechanics
* Mereology
* Meta-
* Ontology
* Philosophy of mind
* Philosophy of psychology
* Philosophy of self
* Philosophy of space and time
* Teleology
* Theoretical physics

* Category

* v
* t
* e

Ethics

Theories|

* Casuistry
* Consequentialism
* Deontology
* Kantian ethics
* Ethics of care
* Existentialist ethics
* Meta-ethics
* Particularism
* Pragmatic ethics
* Role ethics
* Virtue ethics

Concepts|

* Autonomy
* Axiology
* Belief
* Conscience
* Consent
* Equality
* Care
* Free will
* Good and evil
* Good
* Evil
* Happiness
* Ideal
* Immorality
* Justice
* Liberty
* Morality
* Norm
* Freedom
* Principles
* Suffering or Pain
* Stewardship
* Sympathy
* Trust
* Value
* Virtue
* World view
* Wrong
* full index...

Philosophers|

* Laozi
* Socrates
* Plato
* Aristotle
* Diogenes
* Valluvar
* Cicero
* Confucius
* Augustine of Hippo
* Mencius
* Mozi
* Xunzi
* Thomas Aquinas
* Baruch Spinoza
* David Hume
* Immanuel Kant
* Georg W. F. Hegel
* Arthur Schopenhauer
* Jeremy Bentham
* John Stuart Mill
* Søren Kierkegaard
* Henry Sidgwick
* Friedrich Nietzsche
* G. E. Moore
* Karl Barth
* Paul Tillich
* Dietrich Bonhoeffer
* Philippa Foot
* John Rawls
* John Dewey
* Bernard Williams
* J. L. Mackie
* G. E. M. Anscombe
* William Frankena
* Alasdair MacIntyre
* R. M. Hare
* Peter Singer
* Derek Parfit
* Thomas Nagel
* Robert Merrihew Adams
* Charles Taylor
* Joxe Azurmendi
* Christine Korsgaard
* Martha Nussbaum
* more...

Applied ethics|

* Bioethics
* Business ethics
* Discourse ethics
* Engineering ethics
* Environmental ethics
* Legal ethics
* Media ethics
* Medical ethics
* Nursing ethics
* Professional ethics
* Sexual ethics
* Ethics of eating meat
* Ethics of technology

Meta-ethics|

* Cognitivism
* Moral realism
* Ethical naturalism
* Ethical non-naturalism
* Ethical subjectivism
* Ideal observer theory
* Divine command theory
* Error theory
* Non-cognitivism
* Emotivism
* Quasi-realism
* Universal prescriptivism
* Moral universalism
* Value monism
* Value pluralism
* Moral relativism
* Moral nihilism
* Empiricism
* Moral rationalism
* Ethical intuitionism
* Moral skepticism

Related articles|

* Christian ethics
* Descriptive ethics
* Ethics in religion
* Evolutionary ethics
* Feminist ethics
* History of ethics
* Ideology
* Islamic ethics
* Jewish ethics
* Moral psychology
* Normative ethics
* Philosophy of law
* Political philosophy
* Population ethics
* Social philosophy

* Category

* v
* t
* e

Social and political philosophy

Ancient
philosophers|

* Aristotle
* Chanakya
* Cicero
* Confucius
* Han Fei
* Lactantius
* Laozi
* Mencius
* Mozi
* Origen
* Plato
* Polybius
* Shang
* Socrates
* Sun Tzu
* Tertullian
* Thucydides
* Valluvar
* Xenophon
* Xunzi

Medieval
philosophers|

* Augustine
* Averroes
* Baldus
* Bartolus
* Bruni
* Dante
* Gelasius
* al-Ghazali
* Giles
* Hostiensis
* Ibn Khaldun
* John of Paris
* John of Salisbury
* Latini
* Maimonides
* Marsilius
* Muhammad
* Nizam al-Mulk
* Photios
* Thomas Aquinas
* Wang
* William of Ockham

Early modern
philosophers|

* Beza
* Bodin
* Bossuet
* Botero
* Buchanan
* Calvin
* Cumberland
* Duplessis-Mornay
* Erasmus
* Filmer
* Grotius
* Guicciardini
* Harrington
* Hayashi
* Hobbes
* Hotman
* Huang
* Leibniz
* Locke
* Luther
* Machiavelli
* Malebranche
* Mariana
* Milton
* Montaigne
* More
* Müntzer
* Naudé
* Pufendorf
* Rohan
* Sansovino
* Sidney
* Spinoza
* Suárez

18th–19th-century
philosophers|

* Bakunin
* Bentham
* Bonald
* Bosanquet
* Burke
* Comte
* Constant
* Emerson
* Engels
* Fichte
* Fourier
* Franklin
* Godwin
* Hamann
* Hegel
* Herder
* Hume
* Jefferson
* Justi
* Kant
* political philosophy
* Kierkegaard
* Le Bon
* Le Play
* Maistre
* Marx
* Mazzini
* Mill
* Montesquieu
* Möser
* Nietzsche
* Novalis
* Paine
* Renan
* Rousseau
* Royce
* Sade
* Schiller
* Smith
* Spencer
* Stirner
* Taine
* Thoreau
* Tocqueville
* Vico
* Vivekananda
* Voltaire

20th–21st-century
philosophers|

* Adorno
* Ambedkar
* Arendt
* Aurobindo
* Aron
* Azurmendi
* Badiou
* Baudrillard
* Bauman
* Benoist
* Berlin
* Bernstein
* Butler
* Camus
* Chomsky
* De Beauvoir
* Debord
* Du Bois
* Durkheim
* Dworkin
* Foucault
* Gandhi
* Gauthier
* Gehlen
* Gentile
* Gramsci
* Habermas
* Hayek
* Heidegger
* Irigaray
* Kautsky
* Kirk
* Kropotkin
* Laclau
* Lenin
* Luxemburg
* Mao
* Mansfield
* Marcuse
* Maritain
* Michels
* Mises
* Mou
* Mouffe
* Negri
* Niebuhr
* Nozick
* Nursî
* Oakeshott
* Ortega
* Pareto
* Pettit
* Plamenatz
* Polanyi
* Popper
* Qutb
* Radhakrishnan
* Rand
* Rawls
* Rothbard
* Russell
* Santayana
* Sartre
* Scanlon
* Schmitt
* Searle
* Shariati
* Simmel
* Simonović
* Skinner
* Sombart
* Sorel
* Spann
* Spirito
* Strauss
* Sun
* Taylor
* Walzer
* Weber
* Žižek

Social theories|

* Anarchism
* Authoritarianism
* Collectivism
* Communism
* Communitarianism
* Conflict theories
* Confucianism
* Consensus theory
* Conservatism
* Contractualism
* Cosmopolitanism
* Culturalism
* Fascism
* Feminist political theory
* Gandhism
* Individualism
* Islam
* Islamism
* Legalism
* Liberalism
* Libertarianism
* Mohism
* National liberalism
* Republicanism
* Social constructionism
* Social constructivism
* Social Darwinism
* Social determinism
* Socialism
* Utilitarianism

Concepts|

* Civil disobedience
* Democracy
* Four occupations
* Justice
* Law
* Mandate of Heaven
* Peace
* Property
* Revolution
* Rights
* Social contract
* Society
* War
* more...

Related articles|

* Jurisprudence
* Philosophy and economics
* Philosophy of education
* Philosophy of history
* Philosophy of love
* Philosophy of sex
* Philosophy of social science
* Political ethics
* Social epistemology

* Category

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