Philosophy Of Ancient Greece
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Ancient Greek philosophy arose in the 6th century BC, marking the end of the
Greek Dark Ages The term Greek Dark Ages refers to the period of Greek history from the end of the Mycenaean palatial civilization, around 1100 BC, to the beginning of the Archaic age, around 750 BC. Archaeological evidence shows a widespread collaps ...
. Greek philosophy continued throughout the Hellenistic period and the period in which Greece and most Greek-inhabited lands were part of the Roman Empire.
Philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. Some ...
was used to make sense of the world using reason. It dealt with a wide variety of subjects, including astronomy, epistemology,
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
, political philosophy, ethics, metaphysics, ontology, logic, biology,
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate parti ...
and aesthetics. Greek philosophy has influenced much of Western culture since its inception.
Alfred North Whitehead Alfred North Whitehead (15 February 1861 – 30 December 1947) was an English mathematician and philosopher. He is best known as the defining figure of the philosophical school known as process philosophy, which today has found applicat ...
once noted: "The safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato". Clear, unbroken lines of influence lead from ancient Greek and Hellenistic philosophers to
Roman philosophy Ancient Roman philosophy was heavily influenced by the ancient Greeks and the schools of Hellenistic philosophy; however, unique developments in philosophical schools of thought occurred during the Roman period as well. Interest in philosophy was ...
,
Early Islamic philosophy Early Islamic philosophy or classical Islamic philosophy is a period of intense philosophical development beginning in the 2nd century AH of the Islamic calendar (early 9th century CE) and lasting until the 6th century AH (late 12th century CE) ...
, Medieval
Scholasticism Scholasticism was a medieval school of philosophy that employed a critical organic method of philosophical analysis predicated upon the Aristotelian 10 Categories. Christian scholasticism emerged within the monastic schools that translate ...
, the European Renaissance and the Age of Enlightenment. Greek philosophy was influenced to some extent by the older wisdom literature and mythological cosmogonies of the ancient Near East, though the extent of this influence is widely debated. The classicist Martin Litchfield West states, "contact with oriental cosmology and theology helped to liberate the early Greek philosophers' imagination; it certainly gave them many suggestive ideas. But they taught themselves to reason. Philosophy as we understand it is a Greek creation". Subsequent philosophic tradition was so influenced by Socrates as presented by Plato that it is conventional to refer to philosophy developed prior to Socrates as
pre-Socratic philosophy Pre-Socratic philosophy, also known as early Greek philosophy, is ancient Greek philosophy before Socrates. Pre-Socratic philosophers were mostly interested in cosmology, the beginning and the substance of the universe, but the inquiries of thes ...
. The periods following this, up to and after the wars of Alexander the Great, are those of "Classical Greek" and "
Hellenistic philosophy Hellenistic philosophy is a time-frame for Western philosophy and Ancient Greek philosophy corresponding to the Hellenistic period. It is purely external and encompasses disparate intellectual content. There is no single philosophical school or cu ...
", respectively.


Pre-Socratic philosophy

The convention of terming those philosophers who were active prior to the death of Socrates as the ''pre-Socratics'' gained currency with the 1903 publication of Hermann Diels' ''Fragmente der Vorsokratiker'', although the term did not originate with him. The term is considered useful because what came to be known as the "Athenian school" (composed of Socrates, Plato, and Aristotle) signaled the rise of a new approach to philosophy; Friedrich Nietzsche's thesis that this shift began with Plato rather than with Socrates (hence his nomenclature of "pre-Platonic philosophy") has not prevented the predominance of the "pre-Socratic" distinction.Greg Whitlock, preface to ''The Pre-Platonic Philosophers'', by Friedrich Nietzsche (Urbana: University of Illinois Press, 2001), xiii–xix. The pre-Socratics were primarily concerned with cosmology, ontology, and mathematics. They were distinguished from "non-philosophers" insofar as they rejected mythological explanations in favor of reasoned discourse.


Milesian school

Thales of Miletus, regarded by Aristotle as the first philosopher, held that all things arise from a single material substance, water. It is not because he gave a
cosmogony Cosmogony is any model concerning the origin of the cosmos or the universe. Overview Scientific theories In astronomy, cosmogony refers to the study of the origin of particular astrophysical objects or systems, and is most commonly used i ...
that John Burnet calls him the "first man of science," but because he gave a naturalistic explanation of the cosmos and supported it with reasons. According to tradition, Thales was able to predict an
eclipse An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three ce ...
and taught the Egyptians how to measure the height of the
pyramids A pyramid (from el, πυραμίς ') is a structure whose outer surfaces are triangular and converge to a single step at the top, making the shape roughly a pyramid in the geometric sense. The base of a pyramid can be trilateral, quadrilate ...
. Thales inspired the Milesian school of philosophy and was followed by
Anaximander Anaximander (; grc-gre, Ἀναξίμανδρος ''Anaximandros''; ) was a pre-Socratic Greek philosopher who lived in Miletus,"Anaximander" in ''Chambers's Encyclopædia''. London: George Newnes, 1961, Vol. 1, p. 403. a city of Ionia (in moder ...
, who argued that the substratum or ''arche'' could not be water or any of the
classical element Classical elements typically refer to earth, water, air, fire, and (later) aether which were proposed to explain the nature and complexity of all matter in terms of simpler substances. Ancient cultures in Greece, Tibet, and India had simil ...
s but was instead something "unlimited" or "indefinite" (in Greek, the '' apeiron''). He began from the observation that the world seems to consist of opposites (e.g., hot and cold), yet a thing can become its opposite (e.g., a hot thing cold). Therefore, they cannot truly be opposites but rather must both be manifestations of some underlying unity that is neither. This underlying unity (substratum, ''arche'') could not be any of the classical elements, since they were one extreme or another. For example, water is wet, the opposite of dry, while fire is dry, the opposite of wet. This initial state is ageless and imperishable, and everything returns to it according to necessity. Anaximenes in turn held that the ''arche'' was air, although John Burnet argues that by this, he meant that it was a transparent mist, the ''aether''. Despite their varied answers, the Milesian school was searching for a natural substance that would remain unchanged despite appearing in different forms, and thus represents one of the first scientific attempts to answer the question that would lead to the development of modern atomic theory; "the Milesians," says Burnet, "asked for the ''φύσις'' of all things."


Xenophanes

Xenophanes was born in
Ionia Ionia () was an ancient region on the western coast of Anatolia, to the south of present-day Izmir. It consisted of the northernmost territories of the Ionian League of Greek settlements. Never a unified state, it was named after the Ionian ...
, where the Milesian school was at its most powerful and may have picked up some of the Milesians' cosmological theories as a result. What is known is that he argued that each of the phenomena had a natural rather than divine explanation in a manner reminiscent of Anaximander's theories and that there was only one god, the world as a whole, and that he ridiculed the
anthropomorphism Anthropomorphism is the attribution of human traits, emotions, or intentions to non-human entities. It is considered to be an innate tendency of human psychology. Personification is the related attribution of human form and characteristics t ...
of the Greek religion by claiming that cattle would claim that the gods looked like cattle, horses like horses, and lions like lions, just as the Ethiopians claimed that the gods were snub-nosed and black and the Thracians claimed they were pale and red-haired. Xenophanes was highly influential to subsequent schools of philosophy. He was seen as the founder of a line of philosophy that culminated in
Pyrrhonism Pyrrhonism is a school of philosophical skepticism founded by Pyrrho in the fourth century BCE. It is best known through the surviving works of Sextus Empiricus, writing in the late second century or early third century CE. History Pyrrho of E ...
, possibly an influence on Eleatic philosophy, and a precursor to
Epicurus Epicurus (; grc-gre, Ἐπίκουρος ; 341–270 BC) was an ancient Greek philosopher and sage who founded Epicureanism, a highly influential school of philosophy. He was born on the Greek island of Samos to Athenian parents. Influenced ...
' total break between science and religion.


Pythagoreanism

Pythagoras lived at approximately the same time that Xenophanes did and, in contrast to the latter, the school that he founded sought to reconcile religious belief and reason. Little is known about his life with any reliability, however, and no writings of his survive, so it is possible that he was simply a mystic whose successors introduced rationalism into Pythagoreanism, that he was simply a rationalist whose successors are responsible for the mysticism in Pythagoreanism, or that he was actually the author of the doctrine; there is no way to know for certain. Pythagoras is said to have been a disciple of
Anaximander Anaximander (; grc-gre, Ἀναξίμανδρος ''Anaximandros''; ) was a pre-Socratic Greek philosopher who lived in Miletus,"Anaximander" in ''Chambers's Encyclopædia''. London: George Newnes, 1961, Vol. 1, p. 403. a city of Ionia (in moder ...
and to have imbibed the cosmological concerns of the Ionians, including the idea that the cosmos is constructed of spheres, the importance of the infinite, and that air or aether is the ''arche'' of everything. Pythagoreanism also incorporated
ascetic Asceticism (; from the el, ἄσκησις, áskesis, exercise', 'training) is a lifestyle characterized by abstinence from sensual pleasures, often for the purpose of pursuing spiritual goals. Ascetics may withdraw from the world for their p ...
ideals, emphasizing purgation, metempsychosis, and consequently a respect for all animal life; much was made of the correspondence between mathematics and the cosmos in a musical harmony. Pythagoras believed that behind the appearance of things, there was the permanent principle of mathematics, and that the forms were based on a transcendental mathematical relation.


Heraclitus

Heraclitus must have lived after Xenophanes and Pythagoras, as he condemns them along with Homer as proving that much learning cannot teach a man to think; since
Parmenides Parmenides of Elea (; grc-gre, Παρμενίδης ὁ Ἐλεάτης; ) was a pre-Socratic Greek philosopher from Elea in Magna Graecia. Parmenides was born in the Greek colony of Elea, from a wealthy and illustrious family. His dates a ...
refers to him in the past tense, this would place him in the 5th century BC. Contrary to the Milesian school, which posits one stable element as the '' arche'', Heraclitus taught that '' panta rhei'' ("everything flows"), the closest element to this eternal flux being fire. All things come to pass in accordance with ''Logos'', which must be considered as "plan" or "formula", and "the ''Logos'' is common". He also posited a unity of opposites, expressed through
dialectic Dialectic ( grc-gre, διαλεκτική, ''dialektikḗ''; related to dialogue; german: Dialektik), also known as the dialectical method, is a discourse between two or more people holding different points of view about a subject but wishing ...
, which structured this flux, such as that seeming opposites in fact are manifestations of a common substrate to good and evil itself. Heraclitus called the oppositional processes ἔρις ('' eris''), "strife", and hypothesized that the apparently stable state of δίκη ('' dikê''), or "justice", is the
harmonic A harmonic is a wave with a frequency that is a positive integer multiple of the ''fundamental frequency'', the frequency of the original periodic signal, such as a sinusoidal wave. The original signal is also called the ''1st harmonic'', the ...
unity of these opposites.


Eleatic philosophy

Parmenides of Elea Parmenides of Elea (; grc-gre, Παρμενίδης ὁ Ἐλεάτης; ) was a pre-Socratic Greek philosopher from Elea in Magna Graecia. Parmenides was born in the Greek colony of Elea, from a wealthy and illustrious family. His dates a ...
cast his philosophy against those who held "it is and is not the same, and all things travel in opposite directions,"—presumably referring to Heraclitus and those who followed him. Whereas the doctrines of the Milesian school, in suggesting that the substratum could appear in a variety of different guises, implied that everything that exists is corpuscular, Parmenides argued that the first principle of being was One, indivisible, and unchanging. Being, he argued, by definition implies eternality, while only that which ''is'' can be thought; a thing which ''is'', moreover, cannot be more or less, and so the rarefaction and condensation of the Milesians is impossible regarding Being; lastly, as movement requires that something exist apart from the thing moving (viz. the space into which it moves), the One or Being cannot move, since this would require that "space" both exist and not exist. While this doctrine is at odds with ordinary sensory experience, where things do indeed change and move, the Eleatic school followed Parmenides in denying that sense phenomena revealed the world as it actually was; instead, the only thing with Being was thought, or the question of whether something exists or not is one of whether it can be thought. In support of this, Parmenides' pupil Zeno of Elea attempted to prove that the concept of motion was absurd and as such motion did not exist. He also attacked the subsequent development of pluralism, arguing that it was incompatible with Being. His arguments are known as Zeno's paradoxes.


Pluralism and atomism

The power of Parmenides' logic was such that some subsequent philosophers abandoned the monism of the Milesians, Xenophanes, Heraclitus, and Parmenides, where one thing was the ''arche'', and adopted
pluralism Pluralism denotes a diversity of views or stands rather than a single approach or method. Pluralism or pluralist may refer to: Politics and law * Pluralism (political philosophy), the acknowledgement of a diversity of political systems * Plur ...
, such as Empedocles and
Anaxagoras Anaxagoras (; grc-gre, Ἀναξαγόρας, ''Anaxagóras'', "lord of the assembly";  500 –  428 BC) was a Pre-Socratic Greek philosopher. Born in Clazomenae at a time when Asia Minor was under the control of the Persian Empire, ...
. There were, they said, multiple elements which were not reducible to one another and these were set in motion by love and strife (as in Empedocles) or by Mind (as in Anaxagoras). Agreeing with Parmenides that there is no coming into being or passing away, genesis or decay, they said that things appear to come into being and pass away because the elements out of which they are composed assemble or disassemble while themselves being unchanging. Leucippus also proposed an ontological pluralism with a cosmogony based on two main elements: the vacuum and atoms. These, by means of their inherent movement, are crossing the void and creating the real material bodies. His theories were not well known by the time of Plato, however, and they were ultimately incorporated into the work of his student, Democritus.


Sophism

Sophism arose from the juxtaposition of '' physis'' (nature) and '' nomos'' (law). John Burnet posits its origin in the scientific progress of the previous centuries which suggested that Being was radically different from what was experienced by the senses and, if comprehensible at all, was not comprehensible in terms of order; the world in which people lived, on the other hand, was one of law and order, albeit of humankind's own making. At the same time, nature was constant, while what was by law differed from one place to another and could be changed. The first person to call themselves a sophist, according to Plato, was
Protagoras Protagoras (; el, Πρωταγόρας; )Guthrie, p. 262–263. was a pre-Socratic Greek philosopher and rhetorical theorist. He is numbered as one of the sophists by Plato. In his dialogue '' Protagoras'', Plato credits him with inventing the r ...
, whom he presents as teaching that all virtue is conventional. It was Protagoras who claimed that "man is the measure of all things, of the things that are, that they are, and of the things that are not, that they are not," which Plato interprets as a radical
perspectivism Perspectivism (german: Perspektivismus; also called perspectivalism) is the epistemological principle that perception of and knowledge of something are always bound to the interpretive perspectives of those observing it. While perspectivism reg ...
, where some things seem to be one way for one person (and so actually are that way) and another way for another person (and so actually are ''that'' way as well); the conclusion being that one cannot look to nature for guidance regarding how to live one's life. Protagoras and subsequent sophists tended to teach
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate parti ...
as their primary vocation. Prodicus,
Gorgias Gorgias (; grc-gre, Γοργίας; 483–375 BC) was an ancient Greek sophist, pre-Socratic philosopher, and rhetorician who was a native of Leontinoi in Sicily. Along with Protagoras, he forms the first generation of Sophists. Several doxogr ...
, Hippias, and Thrasymachus appear in various dialogues, sometimes explicitly teaching that while nature provides no ethical guidance, the guidance that the laws provide is worthless, or that nature favors those who act against the laws. Venus


Classical Greek philosophy


Socrates

Socrates, believed to have been born in Athens in the
5th century BC The 5th century BC started the first day of 500 BC and ended the last day of 401 BC. This century saw the establishment of Pataliputra as a capital of the Magadha Empire. This city would later become the ruling capital of different Indian king ...
, marks a watershed in ancient Greek philosophy. Athens was a center of learning, with sophists and philosophers traveling from across Greece to teach rhetoric, astronomy, cosmology, and geometry. While philosophy was an established pursuit prior to Socrates, Cicero credits him as "the first who brought philosophy down from the heavens, placed it in cities, introduced it into families, and obliged it to examine into life and morals, and good and evil." By this account he would be considered the founder of political philosophy. The reasons for this turn toward political and ethical subjects remain the object of much study. The fact that many conversations involving Socrates (as recounted by Plato and Xenophon) end without having reached a firm conclusion, or aporetically, has stimulated debate over the meaning of the Socratic method. Socrates is said to have pursued this probing question-and-answer style of examination on a number of topics, usually attempting to arrive at a defensible and attractive definition of a virtue. While Socrates' recorded conversations rarely provide a definite answer to the question under examination, several maxims or paradoxes for which he has become known recur. Socrates taught that no one desires what is bad, and so if anyone does something that truly is bad, it must be unwillingly or out of ignorance; consequently, all virtue is knowledge. He frequently remarks on his own ignorance (claiming that he does not know what courage is, for example). Plato presents him as distinguishing himself from the common run of mankind by the fact that, while they know nothing noble and good, they do not ''know'' that they do not know, whereas Socrates knows and acknowledges that he knows nothing noble and good. The great statesman Pericles was closely associated with this new learning and a friend of
Anaxagoras Anaxagoras (; grc-gre, Ἀναξαγόρας, ''Anaxagóras'', "lord of the assembly";  500 –  428 BC) was a Pre-Socratic Greek philosopher. Born in Clazomenae at a time when Asia Minor was under the control of the Persian Empire, ...
, however, and his political opponents struck at him by taking advantage of a conservative reaction against the philosophers; it became a crime to investigate the things above the heavens or below the earth, subjects considered impious. Anaxagoras is said to have been charged and to have fled into exile when Socrates was about twenty years of age. There is a story that
Protagoras Protagoras (; el, Πρωταγόρας; )Guthrie, p. 262–263. was a pre-Socratic Greek philosopher and rhetorical theorist. He is numbered as one of the sophists by Plato. In his dialogue '' Protagoras'', Plato credits him with inventing the r ...
, too, was forced to flee and that the Athenians burned his books. Socrates, however, is the only subject recorded as charged under this law, convicted, and sentenced to death in 399 BC (see Trial of Socrates). In the version of his defense speech presented by Plato, he claims that it is the envy he arouses on account of his being a philosopher that will convict him. Numerous subsequent philosophical movements were inspired by Socrates or his younger associates. Plato casts Socrates as the main interlocutor in his dialogues, deriving from them the basis of Platonism (and by extension, Neoplatonism). Plato's student Aristotle in turn criticized and built upon the doctrines he ascribed to Socrates and Plato, forming the foundation of Aristotelianism. Antisthenes founded the school that would come to be known as
Cynicism Cynic or Cynicism may refer to: Modes of thought * Cynicism (philosophy), a school of ancient Greek philosophy * Cynicism (contemporary), modern use of the word for distrust of others' motives Books * ''The Cynic'', James Gordon Stuart Grant 1 ...
and accused Plato of distorting Socrates' teachings. Zeno of Citium in turn adapted the ethics of Cynicism to articulate
Stoicism Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century Common Era, BCE. It is a philosophy of personal virtue ethics informed by its system of logic and its views on the natural world, asser ...
.
Epicurus Epicurus (; grc-gre, Ἐπίκουρος ; 341–270 BC) was an ancient Greek philosopher and sage who founded Epicureanism, a highly influential school of philosophy. He was born on the Greek island of Samos to Athenian parents. Influenced ...
studied with Platonic and Pyrrhonist teachers before renouncing all previous philosophers (including Democritus, on whose atomism the Epicurean philosophy relies). The philosophic movements that were to dominate the intellectual life of the Roman Empire were thus born in this febrile period following Socrates' activity, and either directly or indirectly influenced by him. They were also absorbed by the expanding Muslim world in the 7th through 10th centuries AD, from which they returned to the West as foundations of Medieval philosophy and the Renaissance, as discussed below.


Plato

Plato was an Athenian of the generation after Socrates. Ancient tradition ascribes thirty-six dialogues and thirteen letters to him, although of these only twenty-four of the dialogues are now universally recognized as authentic; most modern scholars believe that at least twenty-eight dialogues and two of the letters were in fact written by Plato, although all of the thirty-six dialogues have some defenders. A further nine dialogues are ascribed to Plato but were considered spurious even in antiquity. Plato's dialogues feature Socrates, although not always as the leader of the conversation. (One dialogue, the ''Laws'', instead contains an "Athenian Stranger.") Along with Xenophon, Plato is the primary source of information about Socrates' life and beliefs and it is not always easy to distinguish between the two. While the Socrates presented in the dialogues is often taken to be Plato's mouthpiece, Socrates' reputation for
irony Irony (), in its broadest sense, is the juxtaposition of what on the surface appears to be the case and what is actually the case or to be expected; it is an important rhetorical device and literary technique. Irony can be categorized into ...
, his caginess regarding his own opinions in the dialogues, and his occasional absence from or minor role in the conversation serve to conceal Plato's doctrines. Much of what is said about his doctrines is derived from what Aristotle reports about them. The political doctrine ascribed to Plato is derived from the ''Republic'', the ''Laws'', and the ''Statesman''. The first of these contains the suggestion that there will not be justice in cities unless they are ruled by
philosopher king The philosopher king is a hypothetical ruler in whom political skill is combined with philosophical knowledge. The concept of a city-state ruled by philosophers is first explored in Plato's ''Republic'', written around 375 BC. Plato argued that ...
s; those responsible for enforcing the laws are compelled to hold their women, children, and property in
common Common may refer to: Places * Common, a townland in County Tyrone, Northern Ireland * Boston Common, a central public park in Boston, Massachusetts * Cambridge Common, common land area in Cambridge, Massachusetts * Clapham Common, originally com ...
; and the individual is taught to pursue the common good through noble lies; the ''Republic'' says that such a city is likely impossible, however, generally assuming that philosophers would refuse to rule and the people would refuse to compel them to do so.Leo Strauss, "Plato", in ''History of Political Philosophy'', ed. Leo Strauss and Joseph Cropsey, 3rd ed. (Chicago: University of Chicago Press 1987): 33–89. Whereas the ''Republic'' is premised on a distinction between the sort of knowledge possessed by the philosopher and that possessed by the king or political man, Socrates explores only the character of the philosopher; in the ''Statesman'', on the other hand, a participant referred to as the Eleatic Stranger discusses the sort of knowledge possessed by the political man, while Socrates listens quietly. Although rule by a wise man would be preferable to rule by law, the wise cannot help but be judged by the unwise, and so in practice, rule by law is deemed necessary. Both the ''Republic'' and the ''Statesman'' reveal the limitations of politics, raising the question of what political order would be best given those constraints; that question is addressed in the ''Laws'', a dialogue that does not take place in Athens and from which Socrates is absent. The character of the society described there is eminently conservative, a corrected or liberalized timocracy on the Spartan or Cretan model or that of pre-democratic Athens. Plato's dialogues also have metaphysical themes, the most famous of which is his theory of forms. It holds that non-material abstract (but substantial) forms (or ideas), and not the material world of change known to us through our physical senses, possess the highest and most fundamental kind of reality. He argued extensively in the '' Phaedo'', ''
Phaedrus Phaedrus may refer to: People * Phaedrus (Athenian) (c. 444 BC – 393 BC), an Athenian aristocrat depicted in Plato's dialogues * Phaedrus (fabulist) (c. 15 BC – c. AD 50), a Roman fabulist * Phaedrus the Epicurean (138 BC – c. 70 BC), an Epic ...
'', and ''
Republic A republic () is a "state in which power rests with the people or their representatives; specifically a state without a monarchy" and also a "government, or system of government, of such a state." Previously, especially in the 17th and 18th c ...
'' for the immortality of the soul, and he believed specifically in reincarnation. Plato often uses long-form analogies (usually allegories) to explain his ideas; the most famous is perhaps the Allegory of the Cave. It likens most humans to people tied up in a cave, who look only at shadows on the walls and have no other conception of reality. If they turned around, they would see what is casting the shadows (and thereby gain a further dimension to their reality). If some left the cave, they would see the outside world illuminated by the sun (representing the ultimate form of goodness and truth). If these travelers then re-entered the cave, the people inside (who are still only familiar with the shadows) would not be equipped to believe reports of this 'outside world'. This story explains the theory of forms with their different levels of reality, and advances the view that philosopher-kings are wisest while most humans are ignorant. One student of Plato, Aristotle, who would become another of the most influential philosophers of all time, stressed the implication that understanding relies upon first-hand observation.


Aristotle

Aristotle moved to Athens from his native Stageira in 367 BC and began to study philosophy (perhaps even rhetoric, under
Isocrates Isocrates (; grc, Ἰσοκράτης ; 436–338 BC) was an ancient Greek rhetorician, one of the ten Attic orators. Among the most influential Greek rhetoricians of his time, Isocrates made many contributions to rhetoric and education throu ...
), eventually enrolling at Plato's Academy.Carnes Lord, Introduction to ''The Politics'', by Aristotle (Chicago: University of Chicago Press, 1984): 1–29. He left Athens approximately twenty years later to study botany and zoology, became a tutor of Alexander the Great, and ultimately returned to Athens a decade later to establish his own school: the Lyceum. Bertrand Russell, ''A History of Western Philosophy'' (New York: Simon & Schuster, 1972). At least twenty-nine of his treatises have survived, known as the ''
corpus Aristotelicum The Corpus Aristotelicum is the collection of Aristotle's works that have survived from antiquity through medieval manuscript transmission. These texts, as opposed to Aristotle's works that were lost or intentionally destroyed, are technical ph ...
'', and address a variety of subjects including logic, physics, optics, metaphysics, ethics,
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate parti ...
, politics, poetry, botany, and zoology. Aristotle is often portrayed as disagreeing with his teacher Plato (e.g., in Raphael's School of Athens). He criticizes the regimes described in Plato's ''Republic'' and ''Laws'',Aristotle, ''Politics'', bk. 2, ch. 1–6. and refers to the theory of forms as "empty words and poetic metaphors." He is generally presented as giving greater weight to empirical observation and practical concerns. Aristotle's fame was not great during the Hellenistic period, when Stoic logic was in vogue, but later
peripatetic Peripatetic may refer to: *Peripatetic school, a school of philosophy in Ancient Greece *Peripatetic axiom * Peripatetic minority, a mobile population moving among settled populations offering a craft or trade. *Peripatetic Jats There are several ...
commentators popularized his work, which eventually contributed heavily to Islamic, Jewish, and medieval Christian philosophy. His influence was such that
Avicenna Ibn Sina ( fa, ابن سینا; 980 – June 1037 CE), commonly known in the West as Avicenna (), was a Persian polymath who is regarded as one of the most significant physicians, astronomers, philosophers, and writers of the Islamic G ...
referred to him simply as "the Master"; Maimonides,
Alfarabi Abu Nasr Muhammad Al-Farabi ( fa, ابونصر محمد فارابی), ( ar, أبو نصر محمد الفارابي), known in the West as Alpharabius; (c. 872 – between 14 December, 950 and 12 January, 951)PDF version was a renowned early Isla ...
, Averroes, and Aquinas as "the Philosopher." Aristotle opposed the utopian style of theorizing, deciding to rely on the understood and observed behaviors of people in reality to formulate his theories. Stemming from an underlying moral assumption that life is valuable, the philosopher makes a point that scarce resources ought to be responsibly allocated to reduce poverty and death. This 'fear of goods' led Aristotle to exclusively support 'natural' trades in which personal satiation was kept at natural limit of consumption. 'Unnatural' trade, as opposed to the intended limit, was classified as the acquisition of wealth to attain more wealth instead of to purchase more goods. Cutting more along the grain of reality, Aristotle did not only set his mind on how to give people direction to make the right choices but wanted each person equipped with the tools to perform this moral duty. In his own words, "Property should be in a certain sense common, but, as a general rule, private; for, when everyone has a distinct interest, men will not complain of one another, and they will make more progress because everyone will be attending to his own business... And further, there is the greatest pleasure in doing a kindness or service to friends or guests or companions, which can only be rendered when a man has private property. These advantages are lost by excessive unification of the state.”


Cynicism

Cynicism was founded by Antisthenes, who was a disciple of Socrates, as well as
Diogenes Diogenes ( ; grc, Διογένης, Diogénēs ), also known as Diogenes the Cynic (, ) or Diogenes of Sinope, was a Greek philosopher and one of the founders of Cynicism (philosophy). He was born in Sinope, an Ionian colony on the Black Sea ...
, his contemporary. Their aim was to live according to nature and against convention. Antisthenes was inspired by the ascetism of Socrates, and accused Plato of pride and conceit. Diogenes, his follower, took the ideas to their limit, living in extreme poverty and engaging in anti-social behaviour. Crates of Thebes was, in turn, inspired by Diogenes to give away his fortune and live on the streets of Athens.


Cyrenaicism

The Cyrenaics were founded by
Aristippus Aristippus of Cyrene, Libya, Cyrene (; grc, Ἀρίστιππος ὁ Κυρηναῖος; c. 435 – c. 356 BCE) was a Hedonism, hedonistic Ancient Greece, Greek philosopher and the founder of the Cyrenaics, Cyrenaic school of philosophy. He w ...
of Cyrene, who was a pupil of Socrates. The Cyrenaics were hedonists and held that pleasure was the supreme good in life, especially physical pleasure, which they thought more intense and more desirable than mental pleasures. Pleasure is the only good in life and pain is the only evil. Socrates had held that virtue was the only human good, but he had also accepted a limited role for its utilitarian side, allowing pleasure to be a secondary goal of moral action. Aristippus and his followers seized upon this, and made pleasure the sole final goal of life, denying that virtue had any intrinsic value.


Megarians

The Megarian school flourished in the 4th century BC. It was founded by
Euclides of Megara Euclid of Megara (; grc-gre, Εὐκλείδης ; c. 435 – c. 365 BC) was a Greek Socratic philosopher who founded the Megarian school of philosophy. He was a pupil of Socrates in the late 5th century BC, and was present at his death. He ...
, one of the pupils of Socrates. Its ethical teachings were derived from Socrates, recognizing a single good, which was apparently combined with the Eleatic doctrine of Unity. Their work on
modal logic Modal logic is a collection of formal systems developed to represent statements about necessity and possibility. It plays a major role in philosophy of language, epistemology, metaphysics, and natural language semantics. Modal logics extend other ...
, logical conditionals, and propositional logic played an important role in the development of logic in antiquity, and were influences on the subsequent creation of
Stoicism Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century Common Era, BCE. It is a philosophy of personal virtue ethics informed by its system of logic and its views on the natural world, asser ...
and
Pyrrhonism Pyrrhonism is a school of philosophical skepticism founded by Pyrrho in the fourth century BCE. It is best known through the surviving works of Sextus Empiricus, writing in the late second century or early third century CE. History Pyrrho of E ...
.


Hellenistic philosophy

During the
Hellenistic In Classical antiquity, the Hellenistic period covers the time in Mediterranean history after Classical Greece, between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire, as signified by the Battle of Actium in ...
and Roman periods, many different schools of thought developed in the Hellenistic world and then the
Greco-Roman The Greco-Roman civilization (; also Greco-Roman culture; spelled Graeco-Roman in the Commonwealth), as understood by modern scholars and writers, includes the geographical regions and countries that culturally—and so historically—were di ...
world. There were Greeks, Romans,
Egyptians Egyptians ( arz, المَصرِيُون, translit=al-Maṣriyyūn, ; arz, المَصرِيِين, translit=al-Maṣriyyīn, ; cop, ⲣⲉⲙⲛ̀ⲭⲏⲙⲓ, remenkhēmi) are an ethnic group native to the Nile, Nile Valley in Egypt. Egyptian ...
,
Syrians Syrians ( ar, سُورِيُّون, ''Sūriyyīn'') are an Eastern Mediterranean ethnic group indigenous to the Levant. They share common Levantine Semitic roots. The cultural and linguistic heritage of the Syrian people is a blend of both indi ...
and Arabs who contributed to the development of Hellenistic philosophy. Elements of
Persian philosophy Iranian philosophy (Persian: فلسفه ایرانی) or Persian philosophy can be traced back as far as to Old Iranian philosophical traditions and thoughts which originated in ancient Indo-Iranian roots and were considerably influenced by Zarat ...
and Indian philosophy also had an influence. The spread of Christianity throughout the Roman world, followed by the spread of Islam, ushered in the end of Hellenistic philosophy and the beginnings of Medieval philosophy, which was dominated by the three Abrahamic traditions:
Jewish philosophy Jewish philosophy () includes all philosophy carried out by Jews, or in relation to the religion of Judaism. Until modern ''Haskalah'' (Jewish Enlightenment) and Jewish emancipation, Jewish philosophy was preoccupied with attempts to reconcile ...
, Christian philosophy, and
early Islamic philosophy Early Islamic philosophy or classical Islamic philosophy is a period of intense philosophical development beginning in the 2nd century AH of the Islamic calendar (early 9th century CE) and lasting until the 6th century AH (late 12th century CE) ...
.


Pyrrhonism

Pyrrho of Elis, a
Democritean Democritus (; el, Δημόκριτος, ''Dēmókritos'', meaning "chosen of the people"; – ) was an Ancient Greek pre-Socratic philosopher from Abdera, primarily remembered today for his formulation of an atomic theory of the universe. No ...
philosopher, traveled to India with Alexander the Great's army where Pyrrho was influenced by Buddhist teachings, most particularly the three marks of existence. After returning to Greece, Pyrrho started a new school of philosophy,
Pyrrhonism Pyrrhonism is a school of philosophical skepticism founded by Pyrrho in the fourth century BCE. It is best known through the surviving works of Sextus Empiricus, writing in the late second century or early third century CE. History Pyrrho of E ...
, which taught that it is one's opinions about non-evident matters (i.e., dogma) that prevent one from attaining
eudaimonia Eudaimonia (Greek: εὐδαιμονία ; sometimes anglicized as eudaemonia or eudemonia, ) is a Greek word literally translating to the state or condition of 'good spirit', and which is commonly translated as 'happiness' or 'welfare'. In wor ...
. Pyrrhonism places the attainment of ataraxia (a state of
equanimity Equanimity (Latin: ''æquanimitas'', having an even mind; ''aequus'' even; ''animus'' mind/soul) is a state of inner peace, psychological stability and composure which is undisturbed by experience of or exposure to emotions, pain, or other phenom ...
) as the way to achieve eudaimonia. To bring the mind to ataraxia Pyrrhonism uses
epoché Epoché ( ἐποχή ''epokhē'', "cessation") is an ancient Greek term. In Hellenistic philosophy it is a technical term typically translated as " suspension of judgment" but also as "withholding of assent". In the modern philosophy of Phenomen ...
(
suspension of judgment Suspended judgment is a cognitive process and a rational state of mind in which one withholds judgments, particularly on the drawing of moral or ethical conclusions. The opposite of suspension of judgment is ''premature judgement'', usually shortene ...
) regarding all non-evident propositions. Pyrrhonists dispute that the dogmatists – which includes all of Pyrrhonism's rival philosophies – have found truth regarding non-evident matters. For any non-evident matter, a Pyrrhonist makes arguments for and against such that the matter cannot be concluded, thus suspending belief and thereby inducing ataraxia.


Epicureanism

Epicurus Epicurus (; grc-gre, Ἐπίκουρος ; 341–270 BC) was an ancient Greek philosopher and sage who founded Epicureanism, a highly influential school of philosophy. He was born on the Greek island of Samos to Athenian parents. Influenced ...
studied in Athens with Nausiphanes, who was a follower of Democritus and a student of Pyrrho of Elis. He accepted Democritus' theory of atomism, with improvements made in response to criticisms by Aristotle and others. His ethics were based on "the pursuit of pleasure and the avoidance of pain". This was, however, not simple
hedonism Hedonism refers to a family of theories, all of which have in common that pleasure plays a central role in them. ''Psychological'' or ''motivational hedonism'' claims that human behavior is determined by desires to increase pleasure and to decr ...
, as he noted that "We do not mean the pleasures of the prodigal or of sensuality . . . we mean the absence of pain in the body and trouble in the mind".


Stoicism

The founder of Stoicism, Zeno of Citium, was taught by Crates of Thebes, and he took up the Cynic ideals of continence and self-mastery, but applied the concept of
apatheia Apatheia ( el, ἀπάθεια; from ''a-'' "without" and ''pathos'' "suffering" or "passion"), in Stoicism, refers to a state of mind in which one is not disturbed by the passions. It might better be translated by the word equanimity than the word ...
(indifference) to personal circumstances rather than social norms, and switched shameless flouting of the latter for a resolute fulfillment of social duties. Logic and physics were also part of early Stoicism, further developed by Zeno's successors Cleanthes and
Chrysippus Chrysippus of Soli (; grc-gre, Χρύσιππος ὁ Σολεύς, ; ) was a Greek Stoic philosopher. He was a native of Soli, Cilicia, but moved to Athens as a young man, where he became a pupil of the Stoic philosopher Cleanthes. When Clean ...
. Their metaphysics was based in
materialism Materialism is a form of philosophical monism which holds matter to be the fundamental substance in nature, and all things, including mental states and consciousness, are results of material interactions. According to philosophical materiali ...
, which was structured by logos, reason (but also called God or fate). Their logical contributions still feature in contemporary propositional calculus. Their ethics was based on pursuing happiness, which they believed was a product of 'living in accordance with nature'. This meant accepting those things which one could not change. One could therefore choose whether to be happy or not by adjusting one's attitude towards their circumstances, as the freedom from fears and desires was happiness itself.


Platonism


Academic skepticism

Around 266 BC, Arcesilaus became head of the Platonic Academy, and adopted skepticism as a central tenet of Platonism, making Platonism nearly the same as
Pyrrhonism Pyrrhonism is a school of philosophical skepticism founded by Pyrrho in the fourth century BCE. It is best known through the surviving works of Sextus Empiricus, writing in the late second century or early third century CE. History Pyrrho of E ...
. After Arcesilaus, Academic skepticism diverged from Pyrrhonism. This skeptical period of ancient Platonism, from Arcesilaus to Philo of Larissa, became known as the
New Academy The Academy (Ancient Greek: Ἀκαδημία) was founded by Plato in c. 387 BC in Athens. Aristotle studied there for twenty years (367–347 BC) before founding his own school, the Lyceum. The Academy persisted throughout the Hellenistic p ...
, although some ancient authors added further subdivisions, such as a
Middle Academy The Academy (Ancient Greek: Ἀκαδημία) was founded by Plato in c. 387 BC in Classical Athens, Athens. Aristotle studied there for twenty years (367–347 BC) before founding his own school, the Lyceum (classical), Lyceum. The Academy ...
. The Academic skeptics did not doubt the existence of truth; they just doubted that humans had the capacities for obtaining it. They based this position on Plato's '' Phaedo'', sections 64–67, in which Socrates discusses how knowledge is not accessible to mortals. While the objective of the Pyrrhonists was the attainment of ataraxia, after Arcesilaus the Academic skeptics did not hold up ataraxia as the central objective. The Academic skeptics focused on criticizing the dogmas of other schools of philosophy, in particular of the dogmatism of the
Stoics Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century BCE. It is a philosophy of personal virtue ethics informed by its system of logic and its views on the natural world, asserting that th ...
. They acknowledged some vestiges of a moral law within, at best but a plausible guide, the possession of which, however, formed the real distinction between the
sage Sage or SAGE may refer to: Plants * ''Salvia officinalis'', common sage, a small evergreen subshrub used as a culinary herb ** Lamiaceae, a family of flowering plants commonly known as the mint or deadnettle or sage family ** ''Salvia'', a large ...
and the fool. Slight as the difference may appear between the positions of the Academic skeptics and the Pyrrhonists, a comparison of their lives leads to the conclusion that a practical philosophical moderation was the characteristic of the Academic skeptics whereas the objectives of the Pyrrhonists were more psychological.


Middle Platonism

Following the end of the skeptical period of the Academy with Antiochus of Ascalon, Platonic thought entered the period of Middle Platonism, which absorbed ideas from the Peripatetic and Stoic schools. More extreme
syncretism Syncretism () is the practice of combining different beliefs and various school of thought, schools of thought. Syncretism involves the merging or religious assimilation, assimilation of several originally discrete traditions, especially in t ...
was done by
Numenius of Apamea Numenius of Apamea ( grc-gre, Νουμήνιος ὁ ἐξ Ἀπαμείας, ''Noumēnios ho ex Apameias''; la, Numenius Apamensis) was a Greek philosopher, who lived in Apamea in Syria and Rome, and flourished during the latter half of the 2nd ...
, who combined it with
Neopythagoreanism Neopythagoreanism (or neo-Pythagoreanism) was a school of Hellenistic philosophy which revived Pythagorean doctrines. Neopythagoreanism was influenced by middle Platonism and in turn influenced Neoplatonism. It originated in the 1st century BC ...
.


Neoplatonism

Also affected by the neopythagoreans, the
neoplatonists Neoplatonism is a strand of Platonic philosophy that emerged in the 3rd century AD against the background of Hellenistic philosophy and religion. The term does not encapsulate a set of ideas as much as a chain of thinkers. But there are some ide ...
, first of them Plotinus, argued that mind exists before matter, and that the universe has a singular cause which must therefore be a single mind. As such, neoplatonism became essentially a religion, and had great impact on Gnosticism and
Christian theology Christian theology is the theology of Christianity, Christian belief and practice. Such study concentrates primarily upon the texts of the Old Testament and of the New Testament, as well as on Christian tradition. Christian theology, theologian ...
.


Transmission of Greek philosophy in the Medieval Period

During the Middle Ages, Greek ideas were largely forgotten in Western Europe due to the decline in literacy during the
Migration Period The Migration Period was a period in European history marked by large-scale migrations that saw the fall of the Western Roman Empire and subsequent settlement of its former territories by various tribes, and the establishment of the post-Roman ...
. In the Byzantine Empire, however, Greek ideas were preserved and studied. Islamic philosophers such as Al-Kindi (Alkindus), Al-Farabi (Alpharabius), Ibn Sina (
Avicenna Ibn Sina ( fa, ابن سینا; 980 – June 1037 CE), commonly known in the West as Avicenna (), was a Persian polymath who is regarded as one of the most significant physicians, astronomers, philosophers, and writers of the Islamic G ...
) and Ibn Rushd ( Averroes) also reinterpreted these works after the caliphs authorized the gathering of Greek manuscripts and hired translators to increase their prestige. During the High Middle Ages Greek philosophy re-entered the West through both translations from Arabic to Latin and original Greek manuscripts from the Byzantine Empire.Lindberg, David. (1992) ''The Beginnings of Western Science''. University of Chicago Press
p. 162
The re-introduction of these philosophies, accompanied by the new Arabic commentaries, had a great influence on Medieval philosophers such as Thomas Aquinas.


See also

* Ancient philosophy *
Byzantine philosophy Byzantine philosophy refers to the distinctive philosophical ideas of the philosophers and scholars of the Byzantine Empire, especially between the 8th and 15th centuries. It was characterised by a Christian world-view, but one which could draw id ...
* Definitions of philosophy *
English words of Greek origin The Greek language has contributed to the English lexicon in five main ways: * vernacular borrowings, transmitted orally through Vulgar Latin directly into Old English, ''e.g.'', 'butter' (, from Latin < ), or through French, ''e.g.'', 'ochre'; * ...
*
International scientific vocabulary International scientific vocabulary (ISV) comprises scientific and specialized words whose language of origin may or may not be certain, but which are in current use in several modern languages (that is, translingually, whether in naturalized, loa ...
* List of ancient Greek philosophers * Translingualism *
Transliteration of Greek into English Romanization of Greek is the transliteration ( letter-mapping) or transcription (sound-mapping) of text from the Greek alphabet into the Latin alphabet. History The conventions for writing and romanizing Ancient Greek and Modern Greek differ ...


Notes


References

* * Kamtekar, Rachana. "The Soul's (After-) Life", ''Ancient Philosophy'' 36 (2016): 1–18. * Campbell, Douglas R. "Plato's Theory of Reincarnation: Eschatology and Natural Philosophy", ''Review of Metaphysics'' 75 (4): 643–665. 2022. * Nikolaos Bakalis (2005). ''Handbook of Greek Philosophy: From Thales to the Stoics Analysis and Fragments'', Trafford Publishing * John Burnet
''Early Greek Philosophy''
(archived fro

6 February 2015), 1930. * * * William Keith Chambers Guthrie, ''A History of Greek Philosophy: Volume 1, The Earlier Presocratics and the Pythagoreans'', 1962. *
Søren Kierkegaard Søren Aabye Kierkegaard ( , , ; 5 May 1813 – 11 November 1855) was a Danish theologian, philosopher, poet, social critic, and religious author who is widely considered to be the first existentialist philosopher. He wrote critical texts on ...
, '' On the Concept of Irony with Continual Reference to Socrates'', 1841. *
A.A. Long AA, Aa, Double A, or Double-A may refer to: Arts, entertainment and media * ''America's Army'', a 2002 computer game published by the U.S. Army * ''Ancient Anguish'', a computer game in existence since 1992 * Aa!, a J-Pop musical group * Doub ...
. ''Hellenistic Philosophy.'' University of California, 1992. (2nd Ed.) * Martin Litchfield West, ''Early Greek Philosophy and the Orient'', Oxford, Clarendon Press, 1971. * Martin Litchfield West, ''The East Face of Helicon: West Asiatic Elements in Greek Poetry and Myth'', Oxford ngland New York: Clarendon Press, 1997.


Further reading

* Clark, Stephen. 2012. ''Ancient Mediterranean Philosophy: An Introduction.'' New York: Bloomsbury. * Curd, Patricia, and D.W. Graham, eds. 2008. ''The Oxford Handbook of Presocratic Philosophy.'' New York: Oxford Univ. Press. * Gaca, Kathy L. 2003. ''The Making of Fornication: Eros, Ethics, and Political Reform in Greek Philosophy and Early Christianity.'' Berkeley: University of California Press. * Garani, Myrto and David Konstan eds. 2014. ''The Philosophizing Muse: The Influence of Greek Philosophy on Roman Poetry.'' Pierides, 3. Newcastle upon Tyne: Cambridge Scholars Publishing. * Kamtekar, Rachana. “The Soul’s (After-) Life,” ''Ancient Philosophy'' 36 (2016): 1-18. * Campbell, Douglas R. "Plato's Theory of Reincarnation: Eschatology and Natural Philosophy," ''Review of Metaphysics'' 75 (4): 643-665. 2022. * Gill, Mary Louise, and Pierre Pellegrin. 2009. ''A Companion to Ancient Greek Philosophy.'' Oxford: Blackwell. * Hankinson, R.J. 1999. ''Cause and Explanation in Ancient Greek Thought.'' Oxford: Oxford University Press. * Hughes, Bettany. 2010. '' The Hemlock Cup: Socrates, Athens and the Search for the Good Life.'' London: Jonathan Cape. * Kahn, C.H. 1994. ''Anaximander and the Origins of Greek Cosmology.'' Indianapolis, IN: Hackett * Luchte, James. 2011. ''Early Greek Thought: Before the Dawn.'' New York: Continuum. * Martín-Velasco, María José and María José García Blanco eds. 2016. ''Greek Philosophy and Mystery Cults.'' Newcastle upon Tyne: Cambridge Scholars Publishing. * Nightingale, Andrea W. 2004. ''Spectacles of Truth in Classical Greek Philosophy: Theoria in its Cultural Context.'' Cambridge, UK: Cambridge Univ. Press. * O’Grady, Patricia. 2002. ''Thales of Miletus''. Aldershot, UK: Ashgate. * Preus, Anthony. 2010. ''The A to Z of Ancient Greek Philosophy.'' Lanham, MD: Scarecrow. * Reid, Heather L. 2011. ''Athletics and Philosophy in the Ancient World: Contests of Virtue.'' Ethics and Sport. London; New York: Routledge. * Wolfsdorf, David. 2013. ''Pleasure in Ancient Greek Philosophy. Key Themes in Ancient Philosophy.'' Cambridge; New York: Cambridge University Press.


External links

*
Ancient Greek Philosophy
entry in the
Internet Encyclopedia of Philosophy The ''Internet Encyclopedia of Philosophy'' (''IEP'') is a scholarly online encyclopedia, dealing with philosophy, philosophical topics, and philosophers. The IEP combines open access publication with peer reviewed publication of original pape ...

Ancient Greek Philosophers
Worldhistorycharts.com

* ttps://plato.stanford.edu/index.html Stanford Encyclopedia of Philosophy
Ancient Greek Philosophy and important Greek philosophers
Hellenism.Net {{DEFAULTSORT:Ancient Greek Philosophy Greek