Book 10
1.39
And if that which disappears had been destroyed and become non-existent, everything would have perished, that into which the things were dissolved being non-existent. Moreover, the sum total of things was always such as it is now, and such it will ever remain. For there is nothing into which it can change. For outside the sum of things there is nothing which could enter into it and bring about the change.
1.39
Further [this he says also in the Larger Epitome near the beginning and in his First Book On Nature], the whole of being consists of bodies and space.Usener’s insertion of bodies and space comes from § 86;cf.Diels,Dox. Gr. 581. 28. For the existence of bodies is everywhere attested by sense itself, and it is upon sensation that reason must rely when it attempts to infer the unknown from the known.
1.40
And if there were no space (which we call also void and place and intangible nature),Cf. Lucr. i. 426. bodies would have nothing in which to be and through which to move, as they are plainly seen to move. Beyond bodies and space there is nothing which by mental apprehension or on its analogy we can conceive to exist. When we speak of bodies and space, both are regarded as wholes or separate things, not as the properties or accidents of separate things.
1.40
Again [he repeats this in the First Book and in Books XIV. and XV. of the work On Nature and in the Larger Epitome], of bodies some are composite, others the elements of which these composite bodies are made.