Marcus Aurelius Goes On Quotations

Do what nature now requires. Set thyself in motion, if it is in thy power, and do not look about thee to see if any one will observe it; nor yet expect Plato's Republic: but be content if the smallest thing goes on well, and consider such an event to be no small matter.

Is your cucumber bitter? Throw it away. Are there briars in your path? Turn aside. That is enough. Do not go on and ay, 'Why were things of this sort ever brought into the world?'

Nothing that goes on in anyone else's mind can harm you.

Don't go on discussing what a good person should be. Just be one.