The most passionate of Seneca's essays, Of Anger diagnoses what he calls 'a short madness' — the most brutal and dangerous of all the passions. In twelve chapters he traces anger from its physiological origins through its social consequences, arguing that it is never warrantable or useful and that the wise man is proof against it. Seneca's practical advice on suppressing anger before it takes hold remains one of the most compelling treatments of emotional self-mastery in Western philosophy.