Whereas metaphysics and psychology deal with the real, aesthetics concerns just those concepts “that solely indicate a value or disvalue” (Weiss 1928: 108; cf. SW XI: 24; 26). Aesthetics is thus a science of values. In particular, aesthetics inquires into the beautiful, which is not a cognitive concept, i.e., no predicate of beings insofar as they exist. Rather the beautiful “denotes the way … an object is apprehended by an observer…” (SW IV: 500; cf. Weiss 1928: 109).