Marcus Aurelius: “He who does wrong does wrong against himself.”

But if there is a providence which allows itself to be propitiated, make thyself worthy of the help of the divinity.

One is that things do not touch the soul, for they are external and remain immovable; but our perturbations come only from the opinion which is within.

All that is from the gods is full of providence.

In the application of thy principles thou must be like the pancratiast, not like the gladiator; for the gladiator lets fall the sword which he uses and is killed; but the other always has his hand, and needs to do nothing else than use it.