attention; but, as we linger in appreciation and reflect upon it, our memory is sure to work. And the process of memory and comparison cannot be excluded on the ground that it is an external, irrelevant context to appreciation; for it actually functions to determine the degree of pleasure and absorption in a work of art. Moreover, this process of memory and comparison is not confined to the individual observer; it is social and historical as well. All art movements are inspired by the desire to improve on, or to create something different from, the conserved tradition. The process of creation itself involves comparison and the recognition of a standard. And for our civilization at any rate these movements are international. They are not the products of isolated discrete groups, impenetrable to each other, but of a relatively universal, continuous experience. As for the uniqueness of aesthetic value, that, to be sure, is a fact; yet uniqueness is never the whole of any object. Those aspects which ally it with other things are just as genuinely its own as those which differentiate it from them; they equally are a part of its beauty. The attempt to separate any part of a work of art from the rest as "the real part" is an unwarranted and arbitrary dismemberment. The work is whole, and beauty belongs to it as whole. Hence, when, through comparison, you attend to the qualities that are shared with other works, you are still judging the reality and beauty of the object, quite as much as when you seek to taste its unique flavor. A competent judgment can neglect no aspect. The judgment that a work of art is better or worse than another in some general aspect touches it just as surely as the feeling for its distinctiveness. And if it be true that so far as things are unique they are all on a level, it is equally true that so far as they are not unique they are capable of being serialized, and our total judgment upon them must follow the lines of comparison.