Epictetus. (c.A.D. 50–c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 1909–14.
CXXXIII
If you are in Gyaros, do not let your mind dwell upon life at Rome, and all the pleasures if offered to you when living there, and all that would attend your return. Rather be intent on this—how he that lives in Gyaros may live in Gyaros like a man of spirit. And if you are in Rome, do not let your mind dwell upon the life at Athens, but study only how to live at Rome.
Finally, in the room of all other pleasures put this—the pleasure which springs from conscious obedience to God.