(g.) (The body exerts an uniform action, while the soul exerts a very
diverse action.) The following considerations further demonstrate the
impossibility of the soul being a body. A body must be hot or cold,
hard or soft, liquid or solid, black or white, or qualities differing
according to its nature. If it is only hot or cold, light or heavy,
black or white, it communicates its only quality to what comes close
to it; for fire could not cool, nor ice heat. Nevertheless, the soul
produces not only different effects in different animals, but contrary
effects even in the same being; she makes certain things solid, dense,
black, light, and certain others liquid, sparse, white, or heavy.
According to the different quality of the body, and according to its
color, she should produce but a single effect; nevertheless, she exerts
a very diverse action.