The vigorous are no better than the lazy during one half of life, for all men are alike when asleep.

For this reason poetry is something more philosophical and more worthy of serious attention than history.

The habits we form from childhood make no small difference, but rather they make all the difference.

A man can make up his mind quickly when he has only a little to make up.

We, on the other hand, must take for granted that the things that exist by nature are, either all or some of them, in motion.

Anything that we have to learn to do we learn by the actual doing of it; People become builders by building and instrumentalists by playing instruments. Similarily, we become just by performing just acts, temperate by performing temperate ones, brave by performing brave ones.

Truth is a remarkable thing. We cannot miss knowing some of it. But we cannot know it entirely.