Plato was an Athenian philosopher during the Classical period in Ancient Greece, founder of the Platonist school of thought, and the Academy, the first institution of higher learning in the Western world.
The Socratic method, also known as method of Elenchus, is a way of communicating between the two based on asking and answering questions to stimulate critical thinking and to draw out ideas. It is a dialectical method, involving a discussion in which the defense of one point of view is questioned; one participant may lead another to contradict themselves in some way, thus weakening the defender's point. This method is named after the Classical Greek philosopher Socrates and is introduced by him in Plato's Theaetetus as midwifery (maieutics) because it is employed to bring out definitions implicit in the interlocutors' beliefs, or to help them further their understanding.
"Nothing", used as a pronoun subject, denotes the absence of a something or particular thing that one might expect or desire to be present or the inactivity of a thing or things that are usually or could be active. As a predicate or complement "nothing" denotes the absence of meaning, value, worth, relevance, standing, or significance. "Nothingness" is a philosophical term that denotes the general state of nonexistence, sometimes reified as a domain or dimension into which things pass when they cease to exist or out of which they may come to exist, e.g., God is understood to have created the universe ex nihilo, "out of nothing."
Zeno of Elea was a pre-Socratic Greek philosopher of Magna Graecia and a member of the Eleatic School founded by Parmenides. Aristotle called him the inventor of the dialectic. He is best known for his paradoxes, which Bertrand Russell has described as "immeasurably subtle and profound".
Ancient Greek philosophy arose in the 6th century BC and continued throughout the Hellenistic period and the period in which Ancient Greece was part of the Roman Empire. Philosophy was used to make sense out of the world in a non-religious way. It dealt with a wide variety of subjects, including astronomy, mathematics, political philosophy, ethics, metaphysics, ontology, logic, biology, rhetoric and aesthetics.
Melissus of Samos was the third and last member of the ancient school of Eleatic philosophy, whose other members included Zeno and Parmenides. Little is known about his life, except that he was the commander of the Samian fleet in the Samian War. Melissus’ contribution to philosophy was a treatise of systematic arguments supporting Eleatic philosophy. Like Parmenides, he argued that reality is ungenerated, indestructible, indivisible, changeless, and motionless. In addition, he sought to show that reality is wholly unlimited, and infinitely extended in all directions; and since existence is unlimited, it must also be one.
The Eleatics were a pre-Socratic school of philosophy founded by Parmenides in the early fifth century BC in the ancient town of Elea. Other members of the school included Zeno of Elea and Melissus of Samos. Xenophanes is sometimes included in the list, though there is some dispute over this. Elea, whose modern-day appellation is Velia, was a Greek colony located in present-day Campania in southern Italy.
Mitchell H. Miller, Jr. is an American philosopher. He was, until his retirement in 2013, the Dexter Ferry Professor in Philosophy at Vassar College. The majority of his work concerns the late dialogues of Plato, but he has also written on Hesiod, Parmenides, and Hegel.
Philosophy in the Tragic Age of the Greeks is an incomplete book by Friedrich Nietzsche. He had a clean copy made from his notes with the intention of publication. The notes were written around 1873. In it he discussed five Greek philosophers from the sixth and fifth centuries BC. They are Thales, Anaximander, Heraclitus, Parmenides, and Anaxagoras. He had, at one time, intended to include Democritus, Empedocles, and Socrates. The book ends abruptly after the discussion of Anaxagoras's cosmogony.
The third man argument, first appears in Plato's dialogue Parmenides. (132a–b) Parmenides uses the example of μέγεθος in a philosophical criticism of the theory of Forms. The theory of forms is formulated based on the speeches of characters across various dialogues by Plato, although it is often attributed to Plato himself. The argument was furthered by Aristotle who, rather than using the example of "greatness" (μέγεθος), used the example of a man to explain this objection to the theory, which he attributes to Plato; Aristotle posits that if a man is a man because he partakes in the form of man, then a third form would be required to explain how man and the form of man are both man, and so on, ad infinitum.
The Statesman, also known by its Latin title, Politicus, is a Socratic dialogue written by Plato. The text depicts a conversation among Socrates, the mathematician Theodorus, another person named Socrates, and an unnamed philosopher from Elea referred to as "the Stranger". It is ostensibly an attempt to arrive at a definition of "statesman," as opposed to "sophist" or "philosopher" and is presented as following the action of the Sophist.
The Sophist is a Platonic dialogue from the philosopher's late period, most likely written in 360 BC. Its main theme is to identify what a sophist is and how a sophist differs from a philosopher and statesman. Because each seems distinguished by a particular form of knowledge, the dialogue continues some of the lines of inquiry pursued in the epistemological dialogue, Theaetetus, which is said to have taken place the day before. Because the Sophist treats these matters, it is often taken to shed light on Plato's Theory of Forms and is compared with the Parmenides, which criticized what is often taken to be the theory of forms.
Glaucon son of Ariston, was an ancient Athenian and the philosopher Plato's older brother. He is primarily known as a major conversant with Socrates in the Republic, and the interlocutor during the Allegory of the Cave. He is also referenced briefly in the beginnings of two dialogues of Plato, the Parmenides and Symposium.
Adeimantus of Collytus, son of Ariston of Athens, was an ancient Athenian Greek best known as Plato's brother. He plays an important part in Plato's Republic and is mentioned in the Apology and Parmenides dialogues.
The theory of Forms or theory of Ideas is a philosophical theory, concept, or world-view, attributed to Plato, that the physical world is not as real or true as timeless, absolute, unchangeable ideas. According to this theory, ideas in this sense, often capitalized and translated as "Ideas" or "Forms", are the non-physical essences of all things, of which objects and matter in the physical world are merely imitations. Plato speaks of these entities only through the characters of his dialogues who sometimes suggest that these Forms are the only objects of study that can provide knowledge. The theory itself is contested from within Plato's dialogues, and it is a general point of controversy in philosophy. Whether the theory represents Plato's own views is held in doubt by modern scholarship. However, the theory is considered a classical solution to the problem of universals.
Kenneth M. Sayre is an American philosopher who spent most of his career at the University of Notre Dame (ND). His early career was devoted mainly to philosophic applications of artificial intelligence, cybernetics, and information theory. Later on his main interests shifted to Plato, philosophy of mind, and environmental philosophy. His retirement in 2014 was marked by publication of a history of ND's Philosophy Department, Adventures in Philosophy at Notre Dame.
Philosophy of motion is a branch of philosophy concerned with exploring questions on the existence and nature of motion. The central questions of this study concern the epistemology and ontology of motion, whether motion exists as we perceive it, what is it, and, if it exists, how does it occur. The philosophy of motion is important in the study of theories of change in natural systems and is closely connected to studies of space and time in philosophy.
Many Plato interpreters held that his writings contain passages with double meanings, called 'allegories' or 'symbols', that give the dialogues layers of figurative meaning in addition to their usual literal meaning.
These allegorical interpretations of Plato were dominant for more than fifteen hundred years, from about the first century CE through the Renaissance and into the Eighteenth Century, and were advocated by major figures such as Plotinus, Proclus, and Ficino. Beginning with Philo of Alexandria, these views influenced Jewish, Christian and Islamic interpretation of their holy scriptures. They spread widely in the Renaissance and contributed to the fashion for allegory among poets such as Dante, Spenser, and Shakespeare.
