An exact scrutiny of these will be the best means of securing us against this evil. Let us now take, as an example, the usual course of proceeding of the amateur in plastic art, in order to make it evident how necessary a thorough criticism of ancient as well as modern works is, if we would profit by it. No person of a fine natural perception, however uncultivated, can see even an imperfect, incorrect cast of a fine ancient work without being greatly impressed by it; for such a representation still gives the idea, the simplicity and greatness of the form, in a word, the general notion at least, such as a man of imperfect sight would see at a distance. We may often observe how a strong inclination towards art is awakened through such an imperfect reproduction. But the effect is analogous to the object that caused it, and such beginners in art are rather impressed with a blind and indefinite feeling than with the true worth and significance of the object itself. It is such as these who are the authors of the theory that a too curious critical examination destroys our pleasure, and who decry and resist the investigation of details. But when by degrees their experience and knowledge become wider, and a sharper cast in place of the imperfect one, or an original instead of a cast comes under their observation, their satisfaction increases with their insight, and continually advances when at last the originals themselves, the perfect originals, become known to them. We are not deterred by the labyrinth of thorough examination, when the details are of equal perfection with the whole work. Nay, we learn that we are able to appreciate the perfect, just so far as we are in a condition to discern the defective: to distinguish the restored from the original parts, the copy from the model, to contemplate in the smallest fragments the scattered excellence of the whole, is a satisfaction that belongs only to the perfect connoisseur; and there is a wide difference between the contemplation of an imperfect whole with groping sense, and the seeing and seizing, with clear eye, of a perfect one. He who devotes himself to any department of knowledge should aim at the highest. Insight and Practice follow widely different paths, for in the practical each one soon becomes aware that only a certain measure of power is meted to him. But a far greater number of men are capable of knowledge, of insight; we may even say that every man is so who can deny himself, subordinate himself to objects, and does not strive with a rigid and narrow individuality to bring in himself and his poor one-sidedness amid the highest works of nature and art.