 Moore confesses that “I am fully aware of how paradoxical this theory must appear, and even how contemptible” (1899: para. 14). And indeed one wonders whether such an account does not raise more problems than it answers. Fortunately we do not have to be concerned with this question here. However, if we ask whether Moore’s theory really manages to avoid idealism, it is hard not to conclude that its metaphysical commitments are precisely a form of idealism, even if he has been led to his theory by an attempt to maintain epistemological realism! After all, to claim that only concepts are real, that they have a mode of being outside of space and time, that they are non-physical and completely unaffected by any activity of a thinking subject, does not sound very different from statements that can rightly be attributed to, e.g., Hegel, or even ultimately Plato, and that are meant to assert idealism. The main difference in this case is that Moore’s conception of what a concept is has virtually nothing to do with what Hegel means by “concept”, but this does not suffice to establish ontological anti-idealism. Although Moore might avoid identifying concepts with the mental states of subjects by his insistence upon the metaphysical independence of concepts, he comes dangerously close to the point where the difference between ontological idealism and ontological realism vanishes and this distinction becomes a question of terminology.