[Sidenote: _The difference is extensive and empirical._]
The whole difference, then, is quantitative, and as such is indifferent to philosophy, _scientia qualitatum._ Certain men have a greater aptitude, a more frequent inclination fully to express certain complex states of the soul. These men are known in ordinary language as artists. Some very complicated and difficult expressions are not often achieved, and these are called works of art. The limits of the expression-intuitions that are called art, as opposed to those that are vulgarly called non-art, are empirical and impossible to define. If an epigram be art, why not a simple word? If a story, why not the news-jottings of the journalist? If a landscape, why not a topographical sketch? The teacher of philosophy in Molière's comedy was right: "whenever we speak, we create prose." But there will always be scholars like Monsieur Jourdain, astonished at having spoken prose for forty years without knowing it, who will have difficulty in persuading themselves that when they call their servant John to bring their slippers, they have spoken nothing less than--prose.
We must hold firmly to our identification, because among the principal reasons which have prevented Æsthetic, the science of art, from revealing the true nature of art, its real roots in human nature, has been its separation from the general spiritual life, the having made of it a sort of special function or aristocratic club. No one is astonished when he learns from physiology that every cell is an organism and every organism a cell or synthesis of cells. No one is astonished at finding in a lofty mountain the same chemical elements that compose a small stone fragment. There is not one physiology of small animals and one of large animals; nor is there a special chemical theory of stones as distinct from mountains. In the same way, there is not a science of lesser intuition as distinct from a science of greater intuition, nor one of ordinary intuition as distinct from artistic intuition. There is but one Æsthetic, the science of intuitive or expressive knowledge, which is the æsthetic or artistic fact. And this Æsthetic is the true analogue of Logic, which includes, as facts of the same nature, the formation of the smallest and most ordinary concept and the most complicated scientific and philosophical system.