Discipline is a me virtue. Justice, one might say, is a we virtue. It’s about the κοινωνικαί—the common good. It’s one thing to be a person of personal rectitude, but what for? Because we want to make the world a better place. Because we want to contribute to the public benefit, as the Stoics advise. Because we care about other people—people who are like us, people we don’t like, people we will never meet, people who are not yet even born.
