BEGIN EACH DAY by telling yourself: Today I shall be meeting with interference, ingratitude, insolence, disloyalty, ill-will, and selfishness—all of them due to the offenders’ ignorance of what is good or evil.”29 These words were written not by a slave like Epictetus, whom we would naturally expect to encounter insolence and ill will; they were written by the person who was at the time the most powerful man in the world: Marcus Aurelius, emperor of Rome.