Plato

427-347 BC

came of a distinguished Athenian family. In his youth, as he tells us in a letter, he had looked forward eagerly to entering public life.Plato left behind him a mass of writings, of which we possess several letters and at least twenty-five authentic dialogues. These dialogues contain his answers to the three fundamental questions that had been raised by his predecessors and contemporaries. First, where can man find anything which he can know is truth ?
Second, what are the origin and constitution of the natural world in which man is set ? Third, for what purpose was man created and what should he choose as his aim in life ?