 Kant focuses most of his critical gaze in the Aesthetic on Leibniz and the Leibnizians. This may reflect the fact that Leibniz held, as we have seen, well-developed views concerning space and time and their representation. Newton did not hold extensive views about the representation of space and time (although he had a minimal perspective on such matters). It may also reflect the fact that Kant held various broadly “Leibnizian” positions throughout the pre-critical period, breaking rather substantively with Leibniz in the Inaugural Dissertation of 1770. But this is not to say that Kant focused exclusively on Leibniz and his followers in the Aesthetic. He also presents two broad sorts of criticism of the Newtonian position. First, he criticizes the Newtonians for holding a transcendental realist position concerning space and time—his arguments against transcendental realism presumably hold, if they are successful, against both the Leibnizian “inherence” view and the Newtonian “subsistence” view of space and time. Second, he contends that their perspective, unlike Leibniz’s, is marred by a set of serious metaphysical problems. When discussing the Newtonian position, Kant often emphasizes those problems. In §7 of the Aesthetic (in the B edition of 1787), Kant describes the transcendental idealist conception of space and time, and then characterizes the relevant contrast class: