He writes in his book of Stoic meditations: “Today I escaped from anxiety. Or no, I discarded it, because it was within me, in my own perceptions—not outside.” Seneca himself says: “Cling tooth and nail to the following rule: not to give in to adversity, never to trust prosperity and always take full note of fortune’s habit of behaving just as she pleases, treating her as if she were actually going to do everything that is in her power.”