This article analyses a sceptical challenge resulting from metaphysical approaches to the problem of the necessity of empirical laws of nature in Kant’s critical philosophy (what I shall call ‘essentialist’ readings). I argue that this challenge may jeopardize the purpose of empirical enquiry (and therefore the plausibility of essentialist readings), but that Kant has internal resources to address it in the Dialectic of the Critique of Pure Reason. I show that reading this problem through the lens of the Dialectic allows us to reconcile the metaphysical question of necessitation of laws with a robust sense of empirical cognition.

One of the more notorious passages in Kant occurs in the Doctrine of Right where he claims that ‘bloodguilt’ will cling to members of a dissolving society if they fail to execute the last murderer (MM, 6: 333). Although this is the most famous, bloodguilt appears in three other passages in Kant’s writings. These have received little attention in Kant scholarship. In this article, I examine these other passages and argue that bloodguilt functions as a symbol for the demandingness of justice. I then offer a sympathetic interpretation of the passage from the Doctrine of Right.

Marcus Willaschek’s new book Kant on the Sources of Metaphysics: The Dialectic of Pure Reason (Cambridge University Press, 2018) is a penetrating analysis of the Transcendental Dialectic of Kant’s Critique of Pure Reason. In his comments, the author first raises some questions concerning the structure of the Transcendental Dialectic (and Willaschek’s reconstruction of it) and then proposes that looking at the second Critique and continuing on into the third Critique will reveal more roles for the idea of God in Kant’s reconstruction of traditional metaphysics than Willaschek’s treatment suggests.

In the third Critique, Kant collapses his deduction of the universal validity of judgements of sublimity into his exposition of such judgements, a decision called into question by commentators. I defend Kant on this score, explaining how the exposition of judgements of sublimity serves as their deduction. Kant’s key move is his claim that natural objects are not, strictly speaking, sublime. I argue that ideas of reason, on Kant’s view, are the only truly sublime objects and show how this allows him to establish that the imaginations of all observers operate in the same way in experiences of sublimity.

Adrian Moore develops a helpful distinction between good and bad metaphysics. Employing this distinction, I argue, first, that some contemporary metaphysical theories might be ‘bad’, insofar as they employ, unreflectively, concepts akin to Kant’s Ideas of reason. Second, I investigate the difficulty Kant himself has with explaining our craving for bad metaphysics. Third, I raise some problems for Kant’s doctrine of ‘transcendental cognition’, which rests on the difficult assumption that Ideas have objective reality. I conclude that, while Kant has given us means to combat certain bad metaphysics, his own philosophy is not entirely free of it either.