The Soul (n.) is the entire vital principle of any organism, the sum of its powers and processes.
The Soul (n.) is not material, as Democritus would have it; nor does it all die. Part of the rational power of the human soul is passive: it is bound up with memory, and dies with the body that bore the memory; but the "active reason," the pure power of thought, is independent of memory and is untouched with decay.
The Soul (n.) is pure thought, undefiled with reality, just as Aristotle's God is pure activity, undefiled with action.
The Soul (n.) is not put into the body like the quick-silver inserted by Daedalus into the images of Venus to make "stand-ups" of them. A personal and particular soul can exist only in its own body.
Soul (n.) of a wasp or a plant is actually one and potentially many: cut it and each piece goes on living.
Soul (n.) and body are as the flute-player's hand and the flute: what uses an instrument must be distinct from it, even in place if possible.