Kitap 10
1.44
This is because each atom is separated from the rest by void, which is incapable of offering any resistance to the rebound; while it is the solidity of the atom which makes it rebound after a collision, however short the distance to which it rebounds, when it finds itself imprisoned in a mass of entangling atoms. Of all this there is no beginning, since both atoms and void exist from everlasting. [He says below that atoms have no quality at all except shape, size, and weight. But that colour varies with the arrangement of the atoms he states in his Twelve Rudiments; further, that they are not of any and every size; at any rate no atom has ever been seen by our sense.]
1.45
The repetition at such length of all that we are now recalling to mind furnishes an adequate outline for our conception of the nature of things.
1.45
Moreover, there is an infinite number of worlds, some like this world, others unlike it.This remark is not misplaced. For infinity of worlds follows from the infinity of (a) atoms, (b) space; see inf.§§ 73, 89; Lucr. ii. 1048 foll. For the atoms being infinite in number, as has just been proved, are borne ever further in their course. For the atoms out of which a world might arise, or by which a world might be formed, have not all been expended on one world or a finite number of worlds, whether like or unlike this one. Hence there will be nothing to hinder an infinity of worlds.