How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?

Plato is one of the most important founding figures in Western philosophy. Plato's mother was Perictione whose family boasted of a relationship with the famous Athenian lawmaker and lyric poet Solon. Then at twenty-eight Hermodorus says [Plato] went to Euclides in Megara.

Plato is one of the most important founding figures in Western philosophy. In the words of A.