 But how could mere processes of thought issue in any knowledge about the independently existing external world? The belief that it could would seem to involve some kind of mysticism; and, indeed, many “naturalistic” philosophers have felt that the appeals of “Rationalist” philosophers to some special faculty of “rational intuition,” such as one finds in philosophers like Plato, Descartes and Leibniz and, more recently, Katz (1988, 1990), George Bealer (1987) and Laurence Bonjour (1998), these all seem no better off than appeals to “revelation” to establish theology. The program of logicism and “analysis” seemed to many to offer a more promising, “naturalistic” alternative.