Now as of old the gods give men all good things, excepting only those that are baneful and injurious and useless. These, now as of old, are not gifts of the gods: men stumble into them themselves because of their own blindness and folly.

The first principles of the universe are atoms and empty space; everything else is merely thought to exist.

Soul and intellect are just the same things.

Men will cease to be fools only when they cease to be men.

According to convention there is a sweet and a bitter, a hot and a cold, and according to convention, there is an order. In truth, there are atoms and a void.

I would rather discover one true cause than gain the kingdom of Persia.

Tis hard to fight with anger but the prudent man keeps it under control.