Works

Plato's writings were in dialogue form; philosophical ideas were advanced, discussed, and criticized in the context of a conversation or debate involving two or more persons. The earliest collection of Plato's work includes 35 dialogues and 13 letters. The authenticity of a few of the dialogues and most of the letters has been disputed.

Early Dialogues

The dialogues may be divided into early, middle, and later periods of composition. The earliest represent Plato's attempt to communicate the philosophy and dialectical style of Socrates. Several of these dialogues take the same form. Socrates, encountering someone who claims to know much, professes to be ignorant and seeks assistance from the one who knows. As Socrates begins to raise questions, however, it becomes clear that the one reputed to be wise really does not know what he claims to know, and Socrates emerges as the wiser one because he at least knows that he does not know. Such knowledge, of course, is the beginning of wisdom. Included in this group of dialogues are Charmides (an attempt to define temperance), Lysis( discussion of friendship), Laches (a pursuit of the meaning of courage), Protagoras(a defense of the thesis that virtue is knowledge and can be taught), Euthyphro(a consideration of the nature of piety), and Book I of the Republic(a discussion of justice).

Middle and Late Dialogues

The dialogues of the middle and later periods of Plato's life reflect his own philosophical development. The ideas in these works are attributed by most scholars to Plato himself, although Socrates continues to be the main character in many of the dialogues. The writings of the middle period include Gorgias(a consideration of several ethical questions), Meno (a discussion of the nature of knowledge), the Apology(Socrates' defense of himself at his trial against the charges of atheism and corrupting Athenian youth), Crito (Socrates' defense of obedience to the laws of the state), Phaedo (the death scene of Socrates, in which he discusses the theory of Forms, the nature of the soul, and the question of immortality), the Symposium(Plato's outstanding dramatic achievement, which contains several speeches on beauty and love), the Republic (Plato's supreme philosophical achievement, which is a detailed discussion of the nature of justice).

Works Of Later Period

The works of the later period include the Theaetetus(a denial that knowledge is to be identified with sense perception), Parmenides (a critical evaluation of the theory of Forms), Sophist(further consideration of the theory of Ideas, or Forms), Philebus (a discussion of the relationship between pleasure and the good), Timaeus (Plato's views on natural science and cosmology), and the Laws (a more practical analysis of political and social issues).

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