3. It might be objected that nothing (in all this) would hinder the
first Principle from being both single and manifold. We will answer
that the manifold needs a single subject. The manifold cannot exist
without the One from which it comes, and in which it is; without the
One which is counted the first outside of other things, and which must
be considered only in itself. Even on the supposition that it co-exists
with other things, it must, none the less, while being taken with the
other things with which it is supposed to co-exist, be considered
as different from them. Consequently, it must not be considered as
co-existing with other things, but be considered as their subject (or,
substrate), and as existing in itself, instead of co-existing with the
other things of which it is the subject.