The soul of man is immortal and imperishable.

People too smart to get involved in politics are doomed to live in societies run by people who aren't.

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.

Mathematics is the language in which the gods talk to people.

What then is the right way to live? Life should be lived as play.

Boys should abstain from all use of wine until their eighteenth year, for it is wrong to add fire to fire.

If one has made a mistake, and fails to correct it, one has made a greater mistake.