other cause [besides these deities] which [at a certain time] enables the one to act and disables the other. [Such difference would not be caused by time], since time is without change, and the object of the action likewise remains one and the same organic whole. Besides, if two deities existed in this way, both would be subject to the relations of time, since their actions would depend on time; they would also in the moment of acting pass from potentiality to actuality, and require an agent for such transition: their essence would besides include possibility [of existence]. It is equally absurd to assume that both together produce everything in existence, and that neither of them does anything alone; for when a number of forces must be united for a certain result, none of these forces acts of its own accord, and none is by itself the immediate cause of that result, but their union is the immediate cause. It has, furthermore, been proved that the action of the absolute cannot be due to an [external] cause. The union is also an act which presupposes a cause effecting that union, and if that cause be one, it is undoubtedly God: but if it also consists of a number of separate forces, a cause is required for the combination of these forces, as in the first case. Finally, one simple being must be arrived at, that is the cause of the existence of the Universe, which is one whole; it would make no difference whether we assumed that the First Cause had produced the Universe by creatio ex nihilo, or whether the Universe co-existed with the First Cause. It is thus clear how we can prove the Unity of God from the fact that this Universe is one whole.
Another argument concerning the Incorporeality of God.--Every corporeal object is composed of matter and form (Prop. XXII.); every compound of these two elements requires an agent for effecting their combination. Besides, it is evident that a body is divisible and has dimensions: a body is thus undoubtedly subject to accidents. Consequently nothing corporeal can be a unity, either because everything corporeal is divisible or because it is a compound; that is to say, it can logically be analysed into two elements; because a body can only be said to be a certain body when the distinguishing element is added to the corporeal substratum, and must therefore include two elements: but it has been proved that the Absolute admits of no dualism whatever.
Now that we have discussed these proofs, we will expound our own method in accordance with our promise.
CHAPTER II
THE fifth essence, i.e., the heavenly spheres, must either be transient, and in this case motion would likewise be temporary, or, as our opponent assumes, it must be eternal. If the spheres are transient, then God is their Creator: for if anything comes into existence after a period of non-existence, it is self-evident that an agent exists which has effected this result. It would be absurd to contend that the thing itself effected it. If, on the other hand, the heavenly spheres be eternal, with a regular perpetual motion, the cause of this perpetual motion, according to the Propositions enumerated in the Introduction, must be something that is neither a body, nor a force residing in a body, and that is God, praised be His name! We have thus shown that
