“No plague has cost the human race more.” ~ Seneca

Ancient Stoics recognized anger to be a destructive emotion. While we may feel good while expressing anger, most of us don’t like being angry and we don’t generally like being around angry people.

Galen of Pergamon, one of the most celebrated physicians and medical researchers of the ancient world, wrote a book about mental illness called On Passions and Errors of the Soul. The…