Human behavior flows from three main sources: desire, emotion, and knowledge.

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.