Book 7

Section 533

“You will not be able, dear Glaucon, to follow me further, though on my part there will be no lack of goodwill. And, if I could, I would show you, no longer an image and symbol of my meaning, but the very truth, as it appears to me—though whether rightly or not I may not properly affirm. But that something like this is what we have to see, I must affirm. Is not that so?” Surely. “And may we not also declare that nothing less than the power of dialectics could reveal this, and that only to one experienced in the studies we have described, and that the thing is in no other wise possible?” “That, too,” he said, “we may properly affirm.” “This, at any rate,” said I, “no one will maintain in dispute against us : that there is any other way of inquiry that attempts systematically and in all cases to determine what each thing really is. But all the other arts have for their object the opinions and desires of men or are wholly concerned with generation and composition or with the service and tendance of the things that grow and are put together, while the remnant which we said did in some sort lay hold on reality—geometry and the studies that accompany it— are, as we see, dreaming about being, but the clear waking vision of it is impossible for them as long as they leave the assumptions which they employ undisturbed and cannot give any account of them. For where the starting-point is something that the reasoner does not know, and the conclusion and all that intervenes is a tissue of things not really known, what possibility is there that assent in such cases can ever be converted into true knowledge or science?” None, said he. Then, said I, “is not dialectics the only process of inquiry that advances in this manner, doing away with hypotheses, up to the first principle itself in order to find confirmation there? And it is literally true that when the eye of the soul is sunk in the barbaric slough of the Orphic myth, dialectic gently draws it forth and leads it up, employing as helpers and co-operators in this conversion the studies and sciences which we enumerated, which we called sciences often from habit, though they really need some other designation, connoting more clearness than opinion and more obscurity than science. Understanding, I believe, was the term we employed. But I presume we shall not dispute about the name when things of such moment lie before us for consideration.” “No, indeed,” he said. […]