Recorded by Arrian from Epictetus's oral teachings, the Discourses and the Enchiridion together form the essential Stoic handbook. The Discourses range across Providence, character, the Cynic ideal, and the dichotomy between what is and is not in our power. The Enchiridion distils the philosophy into fifty-two practical maxims — beginning with the cornerstone of all Stoic ethics: of things, some are in our power, and others are not.