Live each day as if it be your last.

When you have done a good deed that another has had the benefit of, why do you need a third reward-as fools do-praise for having done well or looking for a favor in return.

My only fear is doing something contrary to human nature - the wrong thing, the wrong way, or at the wrong time.

He who does wrong does wrong against himself. He who acts unjustly acts unjustly to himself, because he makes himself bad.

Observe constantly that all things take place by change.

Everything is ephemeral, both that which remembers and that which is remembered.

The perfection of moral character consists in this, in passing every day as the last, and in being neither violently excited nor torpid nor playing the hypocrite.