The theme or content cannot, therefore, be practically or morally charged with epithets of praise or of blame. When critics of art remark that a theme is _badly selected_, in cases where that observation has a just foundation, it is a question of blaming, not the selection of the theme (which would be absurd), but the manner in which the artist has treated it. The expression has failed, owing to the contradictions which it contains. And when the same critics rebel against the theme or the content as being unworthy of art and blameworthy, in respect to works which they proclaim to be artistically perfect; if these expressions really are perfect, there is nothing to be done but to advise the critics to leave the artists in peace, for they cannot get inspiration, save from what has made an impression upon them. The critics should think rather of how they can effect changes in nature and in society, in order that those impressions may not exist. If ugliness were to vanish from the world, if universal virtue and felicity were established there, perhaps artists would no longer represent perverse or pessimistic sentiments, but sentiments that are calm, innocent, and joyous, like Arcadians of a real Arcady. But so long as ugliness and turpitude exist in nature and impose themselves on the artist, it is not possible to prevent the expression of these things also; and when it has arisen, _factum infectum fieri nequit_. We speak thus entirely from the aesthetic point of view, and from that of pure aesthetic criticism. We do not delay to pass here in review the damage which the criticism of choice does to artistic production, with the prejudices which it produces or maintains among the artists themselves, and with the contrast which it occasions between artistic impulse and critical exigencies. It is true that sometimes it seems to do some good also, by assisting the artists to discover themselves, that is, their own impressions and their own inspiration, and to acquire consciousness of the task which is, as it were, imposed upon them by the historical moment in which they live, and by their individual temperament. In these cases, criticism of choice merely recognizes and aids the expressions which are already being formed. It believes itself to be the mother, where, at most, it is only the midwife. [Sidenote] _The independence of art._ The impossibility of choice of content completes the theorem of the _independence of art_, and is also the only legitimate meaning of the expression: _art for art's sake_. Art is thus independent of science, as it is of the useful and the moral. Let it not be feared that thus may be justified art that is frivolous or cold, since that which is truly frivolous or cold is so because it has not been raised to expression; or in other words, frivolity and frigidity come always from the form of the aesthetic elaboration, from the lack of a content, not from the material qualities of the content.