The Stoic philosopher Seneca understood how much harm we do by allowing ourselves to get angry. In his essay “On Anger,” he asserts, “No plague has cost the human race more.”1 Because of anger, people insult and sue each other, they divorce each other, and they hit and even kill each other. Because of anger, the nations those people live in go to war, and as a result, millions might die at the hands of people they have never even met. Cities might be reduced to rubble, and civilizations might fall.
