We must infer that all things are produced more plentifully and easily and of a better quality when one man does one thing which is natural to him and does it at the right time, and leaves other things.

Life must be lived as play, playing certain games, making sacrifices, singing and dancing, and then a man will be able to propitiate the gods.

All I really know is the extent of my own ignorance

My good friend, you are a citizen of Athens, a city which is very great and very famous for its wisdom and power - are you not ashamed of caring so much for the making of money and for fame and prestige, when you neither think nor care about wisdom and truth and the improvement of your soul?

Philosophy begins in wonder.

To go to the world below, having a soul which is like a vessel full of injustice, is the last and worst of all the evils.

Everything changes and nothing remains still.