Page - 683 - in The Complete Plato

straight or of a circular form? Assuredly. But having no parts, it will be neither straight nor round? Right. And, being of such a nature, it cannot be in any place, for it cannot be either in another or in itself. How so? Because if it were in another, it would be encircled by that in which it was, and would touch it at many places and with many parts; but that which is one and indivisible, and does not partake of a circular nature, cannot be touched all round in many places. Certainly not. But if, on the other hand, one were in itself, it would also be contained by nothing else but itself; that is to say, if it were really in itself; for nothing can be in anything which does not contain it. Impossible. But then, that which contains must be other than that which is contained? for the same whole cannot do and suffer both at once; and if so, one will be no longer one, but two? True. Then one cannot be anywhere, either in itself or in another? No. Further consider, whether that which is of such a nature can have either rest or motion. Why not? Why, because the one, if it were moved, would be either moved in place or changed in nature; for these are the only kinds of motion. Yes. And the one, when it changes and ceases to be itself, cannot be any longer one. It cannot. It cannot therefore experience the sort of motion which is change of nature? Clearly not. 683