XVII. (85) Is it not however worth while to examine this question, in what manner there can be a regeneration of all those things which have been destroyed by fire, and resolved into fire? for when their substance has been wholly destroyed by the fire, it follows of necessity that the fire itself must also be extinguished as no longer having any nourishment. Therefore, as long as it remained the seminal principle of arrangement was likewise preserved, but when it is destroyed that principle is destroyed with it. But it would be impious, and an impiety of double dye, not only to attribute destruction to the world, but also to take away the possibility of its regeneration; as if God delighted in disorder, and irregularity, and all kinds of evil things. (86) But we must examine this question more accurately, in the following manner. There are three species in fire; the coal, and the flame, and the light. Now coal is the fire in its earthy substance, which, like a sort of spiritual habit, couches and lies hid in a sort of cavern, pervading it all to its very extremities. And the flame is that part which, being raised on high, is lifted up from its fuel. And the light is that which is emitted from the flame, so as to co-operate with the eyes, in order to enable them to comprehend what is seen. And the flame occupies the middle position between the coal and the light; for when it is extinguished it ends in coal, and when it is kindled it excites the light, which, being deprived of its burning power, blazes. (87) If therefore, we affirm that the world is dissolved by conflagration, it would not be coal, because, in that case there will be a great deal of the earthy substance left behind, in which also fire must necessarily be contained. But we must agree, that none of the other bodies subsist any longer, but that earth, and water, and air, are all dissolved into unmixed fire. (88) Nor, again, would it become flame; for that can only exist in connexion with nourishment; and, if nothing is left behind, being deprived of all nourishment it will immediately be extinguished. It follows from all this, that it cannot become light either; for light by itself has no substance at all, but flows from the things before mentioned, coal and flame, not in a great degree from the coal, but very much from the flame; for it is diffused over a very great space indeed. But if, as has been already proved, those things had no existence from the conflagration of all things, then there could not be any light either. For the abundant, and vast, and extensive brilliancy of mid-day, when the sun proceeds under the earth, is at once caused to disappear by night, especially if it be a moonless night. Therefore the world is not destroyed by fire, but is indestructible. And if it should be destroyed by fire, there could not be another created.

XVIII. (89) On which account some of the Stoics also, being gifted with a more acute discernment, and perceiving that they would infallibly be convicted, thought it well to be beforehand in preparing assistance as it were for a defunct proposition. But what they prepared was of no use; for, since fire is the cause of all motion, and since motion is the beginning of generation, for it is impossible that anything whatever should be generated without motion, they said that before the new world began to be formed, when it was beginning to be fashioned, the whole fire would not be extinguished in that conflagration; that they affirmed that some would still remain, but yet only a small portion. For they were exceedingly cautious, lest if it should be wholly extinguished, the consequence would be that everything would remain motionless and devoid of ornament, inasmuch as the cause of motion would no longer be in any existence. (90) But all these ideas are the invention of quibblers, who employ all their artifices in opposition to the truth. Why so? Because it is impossible, as has been proved already, that the world, after it has been destroyed by conflagration, should become similar to coal, inasmuch as there is a vast quantity of earthy substance left in which the fire must of necessity lie in ambush. And perhaps too the conflagration could not prevail in every quarter, if the heaviest and most invincible of the elements, namely the earth, still remains, without being dissolved; but it must of necessity change, either into flame or into light: into flame, as Cleanthes thought; into light, as Chryssipus conceived. (91) But if it becomes flame, then, when it approaches extinction, it will be extinguished all at once, and not partially or gradually. For the nutriment exists along with it; on which account, while there is a great deal of it, it increases and is diffused; but when it is stunted it becomes less. And any one might conjecture the truth of what takes place from what he sees happen among us. A lamp, when any one pours oil upon it, gives forth a most brilliant flame; but when any one ceases to supply it with that nutriment, and leaves only a small portion in the lamp, then the lamp is at once extinguished, and does not give out the smallest portion of flame. (92) If again this is not the case, but if the world becomes light, then again it changes altogether. Why so? Because it has no substance or character of its own, but is generated from flame, and when this is wholly and completely extinguished in all its parts, it follows of necessity that the light also must be extinguished, and that not partially, but altogether. For what flame is to nourishment, that also is light to flame. (93) As therefore the flame is extinguished concurrently with the want of nourishment, so also is the light simultaneously with the flame, so that it is actually impossible for the world to be capable of regeneration, if there is no seminal principle lurking and kindled within it, but if all things are expended and destroyed, some by fire, and some by want. From all which arguments it is plain that the world is for ever uncreated and imperishable.