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Plato

Plato (Greek: Πλάτων, Plátōn, "wide, broad-browed) (428/427 BC 348/347 BC), whose original name was Aristocles, was an ancient Greek philosopher, the second of the great trio of ancient Greeks –succeeding Socrates and preceding Aristotle– who between them laid the philosophical foundations of Western culture. Plato was also a mathematician, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the western world. Plato is widely believed to have been a student of Socrates and to have been deeply influenced by his teacher's unjust death.

Plato's brilliance as a writer and thinker can be witnessed by reading his Socratic dialogues. Some of the dialogues, letters, and other works that are ascribed to him are considered spurious. Plato is thought to have lectured at the Academy, although the pedagogical function of his dialogues, if any, is not known with certainty. They have historically been used to teach philosophy, logic, rhetoric, mathematics, and other subjects about which he wrote.

Plato was always concerned with the fundamental philosophical problem of working out a theory of the art of living and knowing. Like Socrates, Plato began convinced of the ultimately harmonious structure of the universe, but he went further than his mentor in trying to construct a comprehensive philosophical scheme. His goal was to show the rational relationship between the soul, the state, and the cosmos. This is the general theme of the great dialogues of his middle years: the Republic, Phaedo, Symposium, Phaedrus, Timaeus, and Philebus. In the Republic he shows how the operation of justice within the individual can best be understood through the analogy of the operation of justice within the state, which Plato proceeds to set out in his conception of the ideal state. However, justice cannot be understood fully unless seen in relation to the Idea of the Good, which is the supreme principle of order and truth.

It is in these dialogues that the famous Platonic Ideas (see realism) are discussed. Plato argued for the independent reality of Ideas as the only guarantee of ethical standards and of objective scientific knowledge. In the Republic and the Phaedo he postulates his theory of Forms. Ideas or Forms are the immutable archetypes of all temporal phenomena, and only these Ideas are completely real; the physical world possesses only relative reality. The Forms assure order and intelligence in a world that is in a state of constant flux. They provide the pattern from which the world of sense derives its meaning.

The supreme Idea is the Idea of the Good, whose function and place in the world of Ideas is analogous to that of the sun in the physical world. Plato saw his task as that of leading men to a vision of the Forms and to some sense of the highest good. The principal path is suggested in the famous metaphor of the cave in the Republic, in which man in his uninstructed state is chained in a world of shadows. However, man can move up toward the sun, or highest good, through the study of what Plato calls dialectic. The supreme science, dialectic, is a method of inquiry that proceeds by a constant questioning of assumptions and by explaining a particular idea in terms of a more general one until the ultimate ground of explanation is reached.

Metaphysics

"Platonism" is a term coined by scholars to refer to the intellectual consequences of denying, as Socrates often does, the reality of the material world. In several dialogues, most notably the Republic, Socrates inverts the common man's intuition about what is knowable and what is real. 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 a-mousoi", an expression that means literally, "happily without the muses" (Theaetetus 156a). In other words, such people live without the divine inspiration that gives him, and people like him, access to higher insights about reality.

Socrates's idea that reality is unavailable to those who use their senses is what puts him at odds with the common man, and with common sense. Socrates says that he who sees with his eyes is blind, and this idea is most famously captured in his allegory of the cave, and more explicitly in his description of the divided line. The allegory of the cave (begins Republic 7.514a) is a paradoxical analogy wherein Socrates argues that the invisible world is the most intelligible ("noeton") and that the visible world ("(h)oraton") is the least knowable, and the most obscure. (This is exactly the opposite of what Socrates says to Euthyphro in the soothsayer's namesake dialogue. There, Socrates tells Euthyphro that people can agree on matters of logic and science, and are divided on moral matters, which are not so easily verifiable.)

Socrates says in the Republic that people who take the sun-lit world of the senses to be good and real are living pitifully in a den of evil and ignorance. Socrates admits that few climb out of the den, or cave of ignorance, and those who do not only have a terrible struggle to attain the heights, but when they go back down for a visit or to help other people up, they find themselves objects of scorn and ridicule.

According to Socrates, physical objects and physical events are "shadows" of their ideal or perfect forms, and exist only to the extent that they instantiate the perfect versions of themselves. Just as shadows are temporary, inconsequential epiphenomena produced by physical objects, physical objects are themselves fleeting phenomena caused by more substantial causes, the ideals of which they are mere instances. For example, Socrates thinks that perfect justice exists (although it is not clear where) and his own trial would be a cheap copy of it.

The allegory of the cave (often said by scholars to represent Plato's own epistemology and metaphysics) is intimately connected to his political ideology (often said to also be Plato's own), that only people who have climbed out of the cave and cast their eyes on a vision of goodness are fit to rule. Socrates claims that the enlightened men of society must be forced from their divine contemplations and compelled to run the city according to their lofty insights. Thus is born the idea of the "philosopher-king", the wise person who accepts the power thrust upon him by the people who are wise enough to choose a good master. This is the main thesis of Socrates in the Republic, that the most wisdom the masses can muster is the wise choice of a ruler.

Labeled Plato's "metaphysics" because Aristotle's musings about divine reality came after ("meta") his lecture notes on his treatise on nature ("physics"), Socrates division of reality into the warring and irreconcilable domains of the material and the spiritual has been of incalculable influence in the history of Western philosophy and religion.

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World Soul

world soul, Lat. anima mundi, in philosophy, term denoting a universal spirit or soul that functions as an organizing principle. While many early Greek philosophers saw the world as of one principle, Plato was the first to state that this concept held the same relation to the world as the human soul did to the body. Friedrich Wilhelm Josef von Schelling used the term as a unifying principle, coordinating the organic and the inorganic in life. World soul is prominent in Asian philosophy. Hinduism is a religion whose theoretical basis is a world soul, called Brahman
The Columbia Electronic Encyclopedia Copyright © 2004, Columbia University Press.
 

Logos

Logos (Greek λόγος) is an important term in philosophy, analytical psychology, rhetoric and religion.

Its semantic field extends beyond "word" to notions such as "thought, speech, account, meaning, reason, proportion, principle, standard", or "logic". In English, the word is the root of "log" (as in record), of "logic," and of the "-ology" suffix (e.g., geology).

Heraclitus established the term in Western philosophy as meaning the fundamental order of the cosmos. The sophists used the term to mean discourse, and Aristotle applied the term to argument from reason. After Judaism came under Hellenistic influence, Philo adopted the term into Jewish philosophy. The Gospel of John identifies Jesus as the incarnation of the Logos, through which all things are made. The gospel further identifies the Logos as God (theos), providing scriptural support for the trinity. It is this sense, the Logos as Jesus Christ and God, that is most common in popular culture.

Psychologist Carl Jung used the term for the masculine principle of rationality.

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This article is licensed under the GNU Free Documentation License.