Self restraint in speech, food, entertainment and vanity are the most essential fundamental of spiritual growth.Nouman Ali Khan
Remember not only to say the right thing in the right place, but far more difficult still, to leave unsaid the wrong thing at the tempting moment.Benjamin Franklin
So much of power is not what you do but what you do not do—the rash and foolish actions that you refrain from before they get you into trouble.Robert Greene