The faculty of choice

What else does the eye do, when it is opened, than see? But whether we ought to look upon somebody’s wife, and in what manner, what tells us that? The faculty of choice. Whether we ought to believe, or to disbelieve, what is said; or whether, if we do believe, we ought to be moved by it or not; what tells us that? Is it not the faculty of choice?

~ Epictetus