For those capable of penetrating beneath appearances, the aesthetic doctrines of Herbart and of Kant will appear very similar. Herbart is notable as insisting, in the manner of Kant, on the distinction between free and adherent beauty (or adornment as sensuous stimulant), on the existence of pure beauty, object of necessary and universal judgments, and on a certain mingling of ethical with his aesthetic theory. Herbart, indeed, called himself "a Kantian, but of the year 1828." Kant's aesthetic theory, though it be full of errors, yet is rich in fruitful suggestions. Kant belongs to a period when philosophy is still young and pliant. Herbart came later, and is dry and one-sided. The romantics and the metaphysical idealists had unified the theory of the beautiful and of art. Herbart restored the old duality and mechanism, and gave us an absurd, unfruitful form of mysticism, void of all artistic inspiration. Herbart may be said to have taken all there was of false in the thought of Kant and to have made it into a system. The beginning of the nineteenth century in Germany is notable for the great number of philosophical theories and of counter-theories, broached and rapidly discussed, before being discarded. None of the most prominent names in the period belong to philosophers of first-rate importance, though they made so much stir in their day. The thought of Friedrich Schleiermacher was obscured and misunderstood amid those crowding mediocrities; yet it is perhaps the most interesting and the most noteworthy of the period. Schleiermacher looked upon Aesthetic as an altogether modern form of thought. He perceived a profound difference between the "Poetics" of Aristotle, not yet freed from empirical precepts, and the tentative of Baumgarten in the eighteenth century. He praised Kant as having been the first to include Aesthetic among the philosophical disciplines. He admitted that with Hegel it had attained to the highest pinnacle, being connected with religion and with philosophy, and almost placed upon their level. But he was dissatisfied with the absurdity of the attempt made by the followers of Baumgarten to construct a science or theory of sensuous pleasure. He disapproved of Kant's view of taste as being the principle of Aesthetic, of Fichte's art as moral teaching, and of the vague conception of the beautiful as the centre of Aesthetic. He approved of Schiller's marking of the moment of spontaneity in productive art, and he praised Schelling for having drawn attention to the figurative arts, as being less liable than poetry to be diverted to false and illusory moralistic ends. Before he begins the study of the place due to the artistic activity in Ethic, he carefully excludes from the study of Aesthetic all practical rules (which, being empirical, are incapable of scientific demonstration).