More quotes by Marcus Aurelius, Meditations

"No man is happy who does not think himself so."
"Observe the movements of the stars as if you were running their courses with them, and let your mind constantly dwell on the changes of the elements into each other. Such imaginings wash away the filth of life on the ground."
"If someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance."
"Our life is what our thoughts make it."
"Perfection of character is this: to live each day as if it were your last, without frenzy, without apathy, without pretence."