If you are pained by any external thing, it is not this that disturbs you, but your own judgment about it.
Marcus AureliusSince you are an integral part of a social system, let every act of yours contribute to the harmonization of social life. Any action that is not related directly or remotely to this social aim disturbs your life, and destroys your unity.
Marcus AureliusIs your cucumber bitter? Throw it away. Are there briars in your path? Turn aside. That is enough. Do not go on and say, "Why were things of this sort ever brought into this world?" neither intolerable nor everlasting - if thou bearest in mind that it has its limits, and if thou addest nothing to it in imagination. Pain is either an evil to the body (then let the body say what it thinks of it!)-or to the soul. But it is in the power of the soul to maintain its own serenity and tranquility. . . .
Marcus Aurelius