Every interest spoils the judgement of taste and takes from its impartiality, especially if the purposiveness is not, as with the interest of Reason, placed before the feeling of pleasure but grounded on it. This last always happens in an aesthetical judgement upon anything so far as it gratifies or grieves us. Hence judgements so affected can lay no claim at all to a universally valid satisfaction, or at least so much the less claim, in proportion as there are sensations of this sort among the determining grounds of taste. That taste is still barbaric which needs a mixture of charms and emotions in order that there may be satisfaction, and still more so if it make these the measure of its assent.
Nevertheless charms are often not only taken account of in the case of beauty (which properly speaking ought merely to be concerned with form) as contributory to the aesthetical universal satisfaction; but they are passed off as in themselves beauties, and thus the matter of satisfaction is substituted for the form. This misconception, however, like so many others which have something true at their basis, may be removed by a careful definition of these concepts.
A judgement of taste on which charm and emotion have no influence (although they may be bound up with the satisfaction in the beautiful),--which therefore has as its determining ground merely the purposiveness of the form,--is a pure judgement of taste.