It is hard to fight against anger: to master it is the mark of a rational man.

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

If your desires are not great, a little will seem much to you; for small appetite makes poverty equivalent to wealth.

Raising children is an uncertain thing; success is reached only after a life of battle and worry.

Nothing exists but atoms and the void.

By convention sweet is sweet, by convention bitter is bitter, by convention hot is hot, by convention cold is cold, by convention color is color. But in reality there are atoms and the void. That is, the objects of sense are supposed to be real and it is customary to regard them as such, but in truth they are not. Only the atoms and the void are real.

Happiness resides not in possessions, and not in gold, happiness dwells in the soul.