Page:Early Greek philosophy by John Burnet, 3rd edition, 1920.djvu/248

234 able to enter the pores of a finer one at all. As Aristotle says, this really implies something like the atomic theory; but there is no evidence that Empedokles himself was conscious of that. Another question raised by Aristotle is even more instructive. Are the pores, he asks, empty or full? If empty, what becomes of the denial of the void? If full, why need we assume pores at all? These questions Empedokles would have found it hard to answer.

110. It will be clear from what has been said that we must distinguish four periods in the cycle. First we have the Sphere, in which all the elements are mixed together by Love. Secondly, there is the period when Love is passing out and Strife coming in, when, therefore, the elements are partially separated and partially combined. Thirdly comes the complete separation of the elements, when Love is outside the world, and Strife has given free play to the attraction of like for like. Lastly, we have the period when Love is bringing the elements together again, and Strife is passing out. This brings us back to the Sphere, and the cycle begins afresh. Now a world such as ours can exist only in the second and fourth of these periods. It seems to be generally supposed that we are in the fourth period; I hope to show that we are in the second, that when Strife is gaining the upper hand.

111. That a world of perishable things (θνητά) arises both in the second and fourth period is distinctly stated by Empedokles (fr. 17), and it is inconceivable that he had not made up his mind which of these worlds is ours. Aristotle is clearly of opinion that in our world Strife is increasing. In one place, he says that Empedokles "holds that the world is in a similar condition now in the period of Strife