some secondary. Not because a soul is divisible, for that may not be: but because all those things in the which they work be divisible, and some principal, as be all ghostly things, and some secondary, as be all bodily things. The two principal working powers, Reason and Will, work purely in themselves in all ghostly things, without help of the other two secondary powers. Imagination and Sensuality work beastly in all bodily things, whether they be present or absent, in the body and with the bodily wits. But by them, without help of Reason and of Will, may a soul never come to for to know the virtue and the conditions of bodily creatures, nor the cause of their beings and their makings.
And for this cause is Reason and Will called principal powers, for they work in pure spirit without any manner of bodilyness: and Imagination and Sensuality secondary, for they work in the body with bodily instru-