Epictetus. (c.A.D. 50c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 190914.
Remember that thou art an actor in a play, and of such sort as the Author chooses, whether long or short. If it be his good pleasure to assign thee the part of a beggar, a ruler, or a simple citizen, thine it is to play it fitly. For thy business is to act the part assigned thee, well: to choose it, is anothers.