 Potential wholes add further complications. Like genera, and unlike integral wholes, it is usually assumed that potential wholes are not literally composed out of their parts. Potential wholes, or at least the subjects underlying them, are items that are fundamentally simple. But, in another respect, the parts of the potential whole behave like parts of an integral whole. Different souls can possess only a selection of the capacities associated with soul, and so in a sense, there is a construction of a specific soul’s total capacity out of many discrete capacities and powers. And no one power by itself exhibits or stands in for the whole soul. 