Epictetus (55 - 135 A.D.) was a Greek Stoic philosopher. An educate Greek who became a Roman slave, upon receiving his freedom he taught philosophy in Rome, but was expelled by the emperor Domitian along with the other philosophers in 90. He moved to Nicopolis in Greece.
His teachings were recorded by his pupil Arrian. They included that the key to proper conduct is self-control and an acceptance of the natural order, which itself was the will of God.
The New American Desk Encyclopedia, Penguin Group, 1989