Ambition 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 AureliusAlways run to the short way; and the short way is the natural: accordingly say and do everything in conformity with the soundest reason. For such a purpose frees a man from trouble, and warfare, and all artifice and ostentatious display.
Marcus AureliusThink on this doctrine, - that reasoning beings were created for one another's sake; that to be patient is a branch of justice, and that men sin without intending it.
Marcus Aurelius