Everything existing in the universe is the fruit of chance and necessity.

Envy creates the beginning of strife.

Good means not [merely] not to do wrong, but rather not to desire to do wrong.

To a wise man, the whole earth is open; for the native land of a good soul is the whole earth.

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 person who can laugh with life has developed deep roots with confidence and faith-faith in oneself, in people and in the world, as contrasted to negative ideas with distrust and discouragement.

Nothing exists except atoms and empty space; everything else is opinion.