“If you set yourself to your present task along the path of true reason, with all determination, vigour, and good will: if you admit no distraction, but keep your own divinity pure and standing strong, as if you had to surrender it right now; if you grapple this to you, expecting nothing, shirking nothing, but self-content with each present action taken in accordance with nature and a heroic truthfulness in all that you say and mean—then you will lead a good life. And nobody is able to stop you.”

Marcus Aurelius, Meditations (Page 21)