The sinner sins against himself; the wrongdoer wrongs himself, becoming the worse by his own action.
Marcus AureliusLook within, for within is the wellspring of virtue, which will not cease flowing, if you cease not from digging.
Marcus AureliusAmbition means tying your well-being to what other people say or do. Self-indulgence means tying it to the things that happen to you. Sanity means tying it to your own actions.
Marcus AureliusEverything is in a state of metamorphosis. Thou thyself art in everlasting change and in corruption to correspond; so is the whole universe.
Marcus Aurelius