About Epictetus:
Epictetus was a Greek speaking Stoic philosopher. He was born a slave at Hierapolis, Phrygia (present day Pamukkale, Turkey), and lived in Rome until his banishment, when he went to Nicopolis in north-western Greece for the rest of his life. His teachings were written down and published by his pupil Arrian in his Discourses.
The key is to keep company only with people who uplift you, whose presence calls forth your best.
Epictetus