But let us keep to the human average, and to the question of aesthetics. According to the quantity withdrawn from the emotional current, we shall, for example, have a spectator who retains from the tragedy its entire content of pure, robust beauty--who will go away in a state of intellectual emotion, less sensible to the murder than to the curve of the arm that struck the blow; to the curses and terrors, than the musical form which limits them, encloses them, gives them life. We shall also have a spectator who, in spite of a few glimmerings of intellectual emotion, leaves the theatre very much as he might a boxing-match or a bull-fight. There are the two extremes. One man, looking at a perfect statue, enjoys the grace of the curves, thinks: what a beautiful work! The other cries: what a beautiful woman! Between these two types there is a whole series of shading. For the man of average type, the idea of beauty scarcely exists. He will judge the work of art according to the intensity or the quality of his emotion. It gives him pleasure, or it leaves him cold, and that is all. It is this average type that determines success in art, the average type must be pleased. Its emotion must be stirred. The representatives of the aesthetic caste also judge a work of art by the emotion it gives them, but this emotion is of a quite special order. It is the aesthetic emotion. For them those works alone that are capable of communicating the aesthetic thrill or emotion belong to art, to the category of beauty. Thus are excluded from art utilitarian, moralizing, social works possessing any purpose whatsoever outside this precise and exclusive goal, aesthetic emotion; also works of too sexual a type, whose appeal to genital exercise is over-direct, though they, too, respond--in their case with excessive clarity--to men's primitive notion of artistic beauty. In this way has been formed that aesthetic category which, eternally instable, ranging from realism to idealism (a certain idealism), from sentimentalism to brutality, from religious feeling to sensuality, remains, nevertheless, a closed garden.