The absence of any one of these conditions excludes a work from the category of art and relegates it to that of art’s counterfeits. If the work does not transmit the artist’s peculiarity of feeling, and is therefore not individual, if it is unintelligibly expressed, or if it has not proceeded from the author’s inner need for expression—it is not a work of art. If all these conditions are present, even in the smallest degree, then the work, even if a weak one, is yet a work of art. The presence in various degrees of these three conditions: individuality, clearness, and sincerity, decides the merit of a work of art, as art, apart from subject-matter. All works of art take rank of merit according to the degree in which they fulfil the first, the second, and the third of these conditions. In one the individuality of the feeling transmitted may predominate; in another, clearness of expression; in a third, sincerity; while a fourth may have sincerity and individuality but be deficient in clearness; a fifth, individuality and clearness, but less sincerity; and so forth, in all possible degrees and combinations. Thus is art divided from not art, and thus is the quality of art, as art, decided, independently of its subject-matter, _i.e._ apart from whether the feelings it transmits are good or bad. But how are we to define good and bad art with reference to its subject-matter? CHAPTER XVI How in art are we to decide what is good and what is bad in subject-matter? Art, like speech, is a means of communication, and therefore of progress, _i.e._ of the movement of humanity forward towards perfection. Speech renders accessible to men of the latest generations all the knowledge discovered by the experience and reflection, both of preceding generations and of the best and foremost men of their own times; art renders accessible to men of the latest generations all the feelings experienced by their predecessors, and those also which are being felt by their best and foremost contemporaries. And as the evolution of knowledge proceeds by truer and more necessary knowledge dislodging and replacing what is mistaken and unnecessary, so the evolution of feeling proceeds through art,—feelings less kind and less needful for the well-being of mankind are replaced by others kinder and more needful for that end. That is the purpose of art. And, speaking now of its subject-matter, the more art fulfils that purpose the better the art, and the less it fulfils it the worse the art. And the appraisement of feelings (_i.e._ the acknowledgment of these or those feelings as being more or less good, more or less necessary for the well-being of mankind) is made by the religious perception of the age.