Since it is possible that thou mayest depart from life this very moment, regulate every act and thought accordingly. But to go away from among men, if there are gods, is not a thing to be afraid of, for the gods will not involve thee in evil; but if indeed they do not exist, or if they have no concern about human affairs, what is it to me to live in a universe devoid of gods or devoid of Providence? But Gods there are, undoubtedly, and they regard human affairs; and have put it wholly in our power, that we should not fall into what is truly evil.
Marcus AureliusSeverally on the occasion of everything that thou doest, pause and ask thyself, if death is a dreadful thing because it deprives thee of this.
Marcus AureliusWhen jarred, unavoidably, by circumstance revert at once to yourself and don't lose the rhythm more than you can help. You'll have a better grasp of harmony if you keep going back to it.
Marcus AureliusWhen you are annoyed at someone's mistake, immediately look at yourself and reflect how you also fail; for example, in thinking that good equals money, or pleasure, or a bit of fame. By being mindful of this you'll quickly forget your anger, especially if you realize that the person was under stress, and could do little else. And, if you can, find a way to alleviate that stress.
Marcus Aurelius