.

OF THE SOUL.
Thales first pronounced that the soul is that being which is in a perpetual motion, or that whose motion proceeds from itself.

Pythagoras, that it is a number moving itself; he takes a number to be the same thing with a mind.

Plato, that it is an intellectual substance moving itself, and that motion is in a numerical harmony.

Aristotle, that it is the first actuality [Greek ommitted] of a natural organical body which has life potentially; and this actuality must be understood to be the same thing with energy or operation.