For every idea or image that comes to us from outside, there is a corresponding faculty within us capable of making use of it.

 In the case of everything that befalls you, remember to turn to yourself and see what faculty you have to deal with it. If you see a handsome lad or woman, you will find continence the faculty to employ here; if hard labour is laid upon you, you will find endurance; if reviling, you will find patience to bear evil. And if you habituate yourself in this fashion, your external impressions will not run away with you.