Book II - Chapter XXI Of Power 1. This idea how got. In which, and the like cases, the power we consider is in reference to the change of perceivable ideas. Power, active and passive.
Power thus considered is two-fold, viz.
The one may be called active, and the other passive power. I shall not now enter into that inquiry, my present business being not to search into the original of power, but how we come by the idea of it. Power includes relation. Figure and motion have something relative in them much more visibly. All which include some kind of relation in them.