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 years: considering the infinite existence of God, it would be the same as if He had only yesterday commenced the Creation. For when we once admit the beginning of the existence of things after their non-existence, it makes no difference whether thousands of centuries have passed since the beginning, or only a short time. Those who defend the Eternity of the Universe find both assumptions equally improbable.

Eighth Method. -- The following method is based on the circumstance that the theory implies a belief which is so common to all peoples and ages, and so universal, that it appears to express a real fact and not merely an hypothesis. Aristotle says that all people have evidently believed in the permanency and stability of the heavens; and thinking that these were eternal, they declared them to be the habitation of God and of the spiritual beings or angels. By thus attributing the heavens to God, they expressed their belief that the heavens are indestructible. Several other arguments of the same kind are employed by Aristotle in treating of this subject in order to support the results of his philosophical speculation by common sense.

CHAPTER XV
IN this chapter I intend to show that Aristotle was well aware that he had not proved the Eternity of the Universe. He was not mistaken in this respect. He knew that he could not prove his theory, and that his arguments and proofs were only apparent and plausible. They are the least objectionable, according to Alexander; but, according to the same authority, Aristotle could not have considered them conclusive, after having himself taught us the rules of logic, and the means by which arguments can be refuted or confirmed.

The reason why I have introduced this subject is this: Later philosophers, disciples of Aristotle, assume that he has proved the Eternity of the Universe, and most of those who believe that they are philosophers blindly follow him in this point, and accept all his arguments as conclusive and absolute proofs. They consider it wrong to differ from Aristotle, or to think that he was ignorant or mistaken in anything. For this reason, taking their standpoint, I show that Aristotle himself did not claim to have proved the Eternity of the Universe. He says in his book Physics (viii., chap. i.) as follows:" All the Physicists before us believed that motion is eternal, except Plato, who holds that motion is transient; according to his opinion the heavens are likewise transient." Now if Aristotle had conclusive proofs for his theory, he would not have considered it necessary to support it by citing the opinions of preceding Physicists, nor would he have found it necessary to point out the folly and absurdity of his opponents. For a truth, once established by proof, does neither gain force nor certainty by the consent of all scholars, nor lose by the general dissent. We further find that Aristotle, in the book The Heavens and the World, introduces his theory of the Eternity of the Universe in the following manner:" Let us inquire into the nature of the heavens, and see whether they are the product of something or not, destructible or not." After this statement of the problem, he proceeds to cite the views of those who hold that the heavens have had a beginning, and continues thus:" By doing this, our theory will be most plausible and acceptable in the opinion