The efforts of the associationists (the usurpers of to-day in the field of Aesthetic) to emerge from the difficulty, and to reaffirm in some way the unity which has been destroyed by their principle of associationism, are highly instructive. Some maintain that the image called back again is unconscious; others, leaving unconsciousness alone, hold that, on the contrary, it is vague, vaporous, confused, thus reducing the _force_ of the aesthetic fact to the _weakness_ of bad memory. But the dilemma is inexorable: either keep association and give up unity, or keep unity and give up association. No third way out of the difficulty exists. [Sidenote] _Critique of aesthetic physic._ From the failure to analyze so-called natural beauty thoroughly, and to recognize that it is simply an incident of aesthetic reproduction, and from having, on the contrary, looked upon it as given in nature, is derived all that portion of treatises upon Aesthetic which is entitled _The Beautiful in Nature or Aesthetic Physic_; sometimes even subdivided, save the mark! into Aesthetic Mineralogy, Botany, and Zoology. We do not wish to deny that such treatises contain many just remarks, and are sometimes themselves works of art, in so far as they represent beautifully the imaginings and fantasies, that is the impressions, of their authors. But we must state that it is scientifically false to ask oneself if the dog be beautiful, and the ornithorhynchus ugly; if the lily be beautiful, and the artichoke ugly. Indeed, the error is here double. On one hand, aesthetic Physic falls back into the equivoke of the theory of artistic and literary classes, by attempting to determine aesthetically the abstractions of our intellect; on the other, fails to recognize, as we said, the true formation of so-called natural beauty; for which the question as to whether some given individual animal, flower, or man be beautiful or ugly, is altogether excluded. What is not produced by the aesthetic spirit, or cannot be referred to it, is neither beautiful nor ugly. The aesthetic process arises from the ideal relations in which natural objects are arranged. [Sidenote] _Critique of the theory of the beauty of the human body._