And one being in itself, will also contain itself, and cannot be other than one, if in itself; for nothing can be in anything which does not contain it.
Impossible.
But then, is not that which contains other than that which is contained? for the same whole cannot at once be affected actively and passively; and one will thus be no longer one, but two?
True.
Then one cannot be anywhere, either in itself or in another?
No.
Further consider, whether that which is of such a nature can have either rest or motion.
Why not?
Why, because motion is either motion in place or change in self; these are the only kinds of motion.
Yes.