Epictetus. (c.A.D. 50c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 190914.
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 thishow 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.