Observe the movements of the stars as if you were running their courses with them, and let your mind constantly dwell on the changes of the elements into each other. Such imaginings wash away the filth of life on the ground.

Men seek out retreats for themselves in the country, by the seaside, on the moutains . . . But all this is unphilosophical to the last degree . . . when thou canst at a moment's notice retire into thyself.

Nothing is evil which is according to nature.

The wise man sees in the misfortune of others what he should avoid.

Be not careless in deeds, nor confused in words, nor rambling in thought.

In an expression of true gratitude, sadness is conspicuous only by its absence

Do not act as if you were going to live ten thousand years. Death hangs over you. While you live, while it is in your power, be good.