Epictetus

Born around AD 55 at Hierapolis in Phrygia, Epictetus began life as a slave and later gained his freedom. He studied Stoic philosophy at Rome, then left the city after philosophers were expelled under the emperor Domitian and established a school at Nicopolis in northwestern Greece.

He wrote nothing himself, but his student Arrian preserved his teaching in the Discourses and the Enchiridion (or Handbook). Those works focus on a simple but powerful idea: some things are up to us and some are not, and peace comes from learning the difference.

What makes Epictetus stand out is how direct and usable his philosophy feels. He was less interested in abstract theory than in training character, urging his students to meet trouble, loss, and uncertainty with discipline, honesty, and inner freedom.