On the Incorruptibility of the World (101-105)

But in the case of the universe the exact contrary will take place, for here the seed will both be greater and will also fill a larger space; and the ultimate perfection at which the thing formed arrives will be smaller, and will appear in a smaller space; and the world, originally derived from a seed, will not

and it is easy to see the truth of what is here said. Every body, when it is resolved into fire, is dissolved, and melted, and diffused; and when the flame which is in it is extinguished, it is then contracted and shrunk up to nothing; but there is no need of arguments to prove a thing which is so clear, as if it were obscure; and, indeed, the world, if consumed by fire, will become greater, inasmuch as all its essence will then be dissolved into the thinnest air; and it appears to me that the Stoics have foreseen this, and on that account have, in their arguments, assumed that a vacuum of infinite extent will be left abandoned on the outside of the world; that so, since it is fated to be subjected to a certain diffusion of boundless extent, it may not be in want of a place which may be capable of receiving that diffusion.

When therefore it has been extended and increased to such a degree, as to be very nearly equal to the infinite extent of the vacuum by the boundless and illimitable extension of its own diffusion, it then, according to them, is itself the principle of seed to itself; but when, according to a perfect regeneration of the parts, its entire substance ...... [*] being contracted in the extinction of the fire into dense air; but when the air again is contracted, and when it settles down into water, then again the water is still further condensed, so as to be changed into earth, which is the best of all the elements. But all these arguments are beyond the ordinary ideas of those who are able to consider and argue upon the consequences of these things.

However, besides what has been here said, any one may use this argument also in corroboration of his opinion, which will certainly convince all those who are not determined to be obstinate beyond all bounds; of those things which in pairs are exactly contrary to one another it is impossible that one thing should be, and that the other should not be; for since there is white it follows as a matter of absolute necessity that there must also be black, and since there is a great there must likewise be a little; since there is an odd there must inevitably be an even; since there is a sweet there must be a bitter; since there is day there must be night; and so on in an infinite number of similar cases; but if a [*]

Come, now, let us consider the matter thus: if everything is resolved into fire, there is then something light, and rare, and warm; for all these are the especial properties of fire; but there can be nothing heavy, or cold, or thick, which are the opposites of the qualities which I have just enumerated. How then can any one more completely overturn the idea of the universal disorder which would be involved in such a conflagration than by showing that those things which by a law of nature must exist together, are by this process separated from their natural conjunction? And the separation has extended to such a degree, that those who maintain this doctrine attribute eternal durability to the one and deny any existence at all to the other.