Since 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 AureliusOur anger and annoyance are more detrimental to us than the things themselves which anger or annoy us.
Marcus AureliusHe who does wrong does wrong against himself. He who acts unjustly acts unjustly to himself, because he makes himself bad.
Marcus Aurelius