something incorporeal, not apart from the body, but the
form of a body; so that Varro said, "God is a soul governing the
world by movement and reason," as Augustine relates (De Civ. Dei vii,
6 [*The words as quoted are to be found iv. 31.]). So some supposed
man's soul to be part of that one soul, as man is a part of the whole
world; for they were unable to go so far as to understand the
different degrees of spiritual substance, except according to the
distinction of bodies.

But, all these theories are impossible, as proved above (Q. 3, AA. 1,
8; and Q. 75, A. 1), wherefore it is evidently false that the soul is
of the substance of God.

Reply Obj. 1: The term "breathe" is not to be taken in the material
sense; but as regards the act of God, to breathe (spirare), is the
same as to _make a spirit._ Moreover, in the material sense, man by
breathing does not send forth anything of his own substance, but an
extraneous thing.

Reply Obj. 2: Although the soul is a simple form in its essence, yet
it is not its own existence, but is a being by participation, as
above explained (Q. 75, A. 5, ad 4). Therefore it is not a pure act
like God.

Reply Obj. 3: That which differs, properly speaking, differs in
something; wherefore we seek for difference where we find also
resemblance. For this reason things which differ must in some way be
compound; since they differ in something, and in something resemble
each other. In this sense, although all that differ are diverse, yet
all things that are diverse do not differ. For simple things are
diverse; yet do not differ from one another by differences which
enter into their composition. For instance, a man and a horse differ
by the difference of rational and irrational; but we cannot say that
these again differ by some further difference.
_______________________

SECOND ARTICLE [I, Q. 90, Art. 2]

Whether the Soul Was Produced by Creation?

Objection 1: It would seem that the soul was not produced by
creation. For that which has in itself something material is produced
from matter. But the soul is in part material, since it is not a pure
act. Therefore the soul was made of matter; and hence it was not
created.

Obj. 2: Further, every actuality of matter is educed from the
potentiality of that matter; for since matter is in potentiality to
act, any act pre-exists in matter potentially. But the soul is the
act of corporeal matter, as is clear from its definition. Therefore
the sou