Further, God is not only the cause of these modes, in so far as they simply exist (by Prop.
xxiv, Coroll.), but also in so far as they are considered as conditioned for operating in a particular manner (Prop.

xxvi.).
If they be not conditioned by God (Prop.

xxvi.), it is impossible, and not contingent, that they should condition themselves; contrariwise, if they be conditioned by God, it is impossible, and not contingent, that they should render themselves unconditioned.

Wherefore all things are conditioned by the necessity of the divine nature, not only to exist, but also to exist and operate in a particular manner, and there is nothing that is contingent.

Q.E.D.
Note .-- Before going any further, I wish here to explain, what we should understand by nature viewed as active (natura naturans), and nature viewed as passive (natura naturata).