([Greek: g]) But even if we abstract from an objective principle of art, and if beauty is to be based on subjective and individual taste, we shall still soon find on the side of art itself that the imitation of nature, which certainly appeared to be a universal principle and one guaranteed by high authority, is at any rate not to be accepted in this universal and merely abstract form. For if we look at the different arts it will at once be admitted that even if painting and sculpture represent objects which appear like those of nature, or the type of which is essentially borrowed from nature, yet works of architecture on the other hand--and architecture belongs to the fine arts--and the productions of poetry, in as far as they do not confine themselves to mere description, are by no means to be called imitations of nature. At least, if we desired to maintain the principle as valid in the case of these latter arts, we should have to make a long circuit by conditioning the proposition in various ways, and reducing the so-called truth[75] at any rate to probability. But if we admitted probability we should again be met by a great difficulty in determining what is probable and what is not; and still, moreover, one would neither consent nor find it possible to exclude from poetry all wholly arbitrary and completely original[76] imaginations. The end of art must, therefore, lie in something different from the purely formal[77] imitation of what we find given, which in any case can bring to the birth only _tricks_ and not _works_ of art. It is, indeed, an element essential to the work of art to have natural shapes for its foundation; seeing that its representation is in the medium of external and therefore of natural phenomena. In painting, for instance, it is an important study to know how to copy with precision the colours in their relations to one another, the effects of light, reflections, etc., and, no less, the forms and figures of objects down to their subtlest characteristics.[78] It is in this respect chiefly that the principle of naturalism in general and of copying nature has recovered its influence in modern times. Its aim is to recall an art which has grown feeble and indistinct to the vigour and crispness of nature; or, again, to invoke against the purely arbitrary and artificial conventionalism, as unnatural as it was inartistic, into which art had strayed, the uniform, direct, and solidly coherent sequences of nature. But however true it is that there is something right in this endeavour from one point of view, yet still the naturalism at which it aims is not as such the substantive and primary concern that underlies fine art. And, therefore, although external appearance in the shape of natural reality constitutes an essential condition of art, yet, nevertheless, neither is the given natural world its _rule_, nor is the mere imitation of external appearance _as_ external its _end_.