Kitap 7
1.141
Time too is incorporeal, being the measure of the world’s motion. And time past and time future are infinite, but time present is finite. They hold that the world must come to an end, inasmuch as it had a beginning, on the analogy of those things which are understood by the senses. And that of which the parts are perishable is perishable as a whole. Now the parts of the world are perishable, seeing that they are transformed one into the other. Therefore the world itself is doomed to perish. Moreover, anything is destructible if it admits of deterioration; therefore the world is so, for it is first evaporated and again dissolved into water.
1.142
The world, they hold, comes into being when its substance has first been converted from fire through air into moisture and then the coarser part of the moisture has condensed as earth, while that whose particles are fine has been turned into air, and this process of rarefaction goes on increasing till it generates fire. Thereupon out of these elements animals and plants and all other natural kinds are formed by their mixture. The generation and the destruction of the world are discussed by Zeno in his treatise On the Whole, by Chrysippus in the first book of his Physics, by Posidonius in the first book of his work On the Cosmos, by Cleanthes, and by Antipater in his tenth book On the Cosmos. Panaetius, however, maintained that the world is indestructible.