The immaterial in man is the expansive force inherent in him.
All movement in matter is, therefore, caused by some immaterial force, namely, God.
The link by which they are connected is of a higher and immaterial nature; and their connexion is to be sought in the view of the Creator himself, whose aim in forming the earth, in allowing it to undergo the successive changes which geology has pointed out, and in creating successively all the different types of animals which have passed away, was to introduce man upon the surface of our globe.
But the movements of the body are not analogous to the movements of matter; they are caused by a special immaterial force, the soul.
He states the various proofs for the existence of an immaterial, infinite, supreme Being, asserts that this Being is the author of the visible universe, and strongly defends the doctrine of the foreknowledge and particular providence of God.