Note (return) — Chapter XII

2. The Cosmological Form of Proof.--It is impossible that there should be motion, genesis, or a chain of causes, except on the assumption of a first Moving Cause, since that which exists only in capacity can not, of itself energize, and consequently without a principle of motion which is essentially active, we have only a principle of immobility. The principle "ex nihilo nihil" forbids us to assume that motion can arise out of immobility, being out of non-being. "How can matter be put in motion if nothing that subsists in energy exist, and is its cause?" All becoming, therefore, necessarily supposes that which has not become, that which is eternally self-active as the principle and cause of all motion. There is no refuge from the notion that all things are "born of night and nothingness" except in this belief. 739