The happiness and unhappiness of the rational, social animal depends not on what he feels but on what he does; just as his virtue and vice consist not in feeling but in doing.
Marcus AureliusIf someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance.
Marcus AureliusOur inward power, when it obeys nature, reacts to events by accommodating itself to what it faces - to what is possible. It needs no specific material. It pursues its own aims as circumstances allow; it turns obstacles into fuel. As a fire overwhelms what would have quenched a lamp. What's thrown on top of the conflagration is absorbed, consumed by it - and makes it burn still higher.
Marcus AureliusAll things change, and you yourself are constantly wasting away. So also is the universe.
Marcus AureliusA man's true greatness lies in the consciousness of an honest purpose in life, founded on a just estimate of himself and everything else, on frequent self-examinations, and a steady obedience to the rule which he knows to be right, without troubling himself about what others may think or say, or whether they do or do not that which he thinks and says and does.
Marcus Aurelius