Epictetus (c. 50-c. 120 CE) was born a slave. His master, Epaphroditus, allowed him to attend the lectures of the Stoic philosopher Musonius Rufus and later gave him his freedom. From numerous references in his Discourses it is clear that Epictetus valued freedom as a precious possession. He would have been on the side of the many people living now who, while not actually enslaved, are denied true freedom by the harsh circumstances of their lives. Epictetus's teachings about freedom and human dignity have echoed through the millennia-in the writings of Spinoza, Thomas Paine and Martin Luther...