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Here Colotes, sycophant-like, catching at his expressions and drawing the discourse from things to words, flatly affirms that Parmenides in one word takes away the existence of all things by supposing ens (or that which is) to be one. But, on the contrary, he takes away neither the one nor the other part of Nature; but rendering to each of them what belongs to it and is convenient for it, he places the intelligible in the idea of one and of that which is, calling it ens because it is eternal and incorruptible, and one because it is always like itself and admits no diversity. And as for that part which is sensible, he places it in the rank of uncertain, disorderly, and always moving. Of which two parts, we may see the distinct judgment: One certain truth and sincere knowledge is, as regarding that which is intelligible, and always alike and of the same sort; The other does on men’s opinions rest, Which breed no true belief within our breast, because it is conversant in things which receive all sorts of changes, passions, and inequalities. Now how he could have left sense and opinion, if he had not also left any thing sensible and opinable, it is impossible for any man to say. But because to that which truly is it appertains to continue in its being, and because sensible things sometimes are, sometimes are not, continually passing from one being to another and perpetually changing their state, he thought they required some other name than that of entia, or things which always are. This speech therefore concerning ens (or that which is), that it should be but one, is not to take away the plurality of sensible things, but to show how they differ from that which is intelligible. Which difference Plato in his discourse of Ideas more fully declaring, has thereby afforded Colotes an opportunity of cavilling.
