Remember that you are an actor in a play, and that the Playwright chooses the manner of it: If he wants you to act a poor man you must act the part with all your powers; and so if your part be a cripple or a magistrate or a plain man. For your business is to act the character that is given you and act it well. The choice of the cast is Another's.

The Discourses and Manual: Together with Fragments of His Writings (ed. 1916)