Kant’s criticism of democracy has been traditionally defused with the consideration that Kant’s aversion is not to democracy per se, but to direct democracy. However, what Kant says – ‘to prevent the republican constitution from being confused with the democratic one, as commonly happens’ (ZeF, 8: 351) – appears to count not only against direct democracy, but also against conceptions of democracy closer to the ones we are accustomed to. By offering a new account of what Kant sees as the real problem of democracy (direct or not), the article unpacks a lesson about the limits of democracy that has gone largely unnoticed among political theorists and Kant specialists.

Both Rousseau and Kant wrote their works with the intention of contributing to the well-being of humans. The ways in which Kant followed Rousseau to achieve this aim were many and go beyond those easily recognized. This article presents evidence for Rousseau’s influence in the Discipline of Pure Reason chapter of the Doctrine of Method in the First Critique. Both Rousseau and Kant emphasized discipline as a necessary part of a proper education that leads to a well-ordered life. Kant’s form of discipline is modeled on the education given to Emile. This approach to the Discipline chapter also affords an enlightening view of Kant’s position in Dreams of a Spirit-Seer.

While Kant’s position concerning human freedom and divine foreknowledge is perhaps the least Molinist element of his multifaceted take on free will, Kant’s Molinism (minimally defined) is undeniable when it comes to the threat ensuing from the idea of creation. In line with incompatibilism and with careful qualifications in place, he ultimately suggests regarding free agents as uncreated. Given the limitations of our rational insight, this assumption is indispensable for granting that finite free agents can acquire their intelligible characters by themselves. Nonetheless, Kant concedes that creation may, as a matter of fact, be compatible with what for Molina is the pre-volitionality of the counterfactuals of freedom.

Kant’s moral philosophy both enjoins the acquisition of self-knowledge as a duty, and precludes certain forms of its acquisition via what has become known as the Opacity Thesis. This article looks at several recent attempts to solve this difficulty and argues that they are inadequate. I argue instead that the Opacity Thesis rules out only the knowledge that one has acted from genuine moral principles, but does not apply in cases of moral failure. The duty of moral self-knowledge applies therefore only to one’s awareness of one’s status as a moral being and to the knowledge of one’s moral failings, both in particular actions and one’s overall character failings, one’s vices. This kind of knowledge is morally salutary as an aid to discovering one’s individual moral weakness as well as the subjective ends for which one acts, and in this way for taking up the morally required end of treating human beings as human beings. In this way, moral self-knowledge can be understood as a necessary element of moral improvement, and I conclude by suggesting several ways to understand it thereby as genuinely primary among the duties to oneself.

Within Kant scholarship, there is an entrenched tendency to distinguish, on Kant’s behalf, between pure and ‘schematized’ categories. There is also a widespread tendency to view the schematized categories as conceptually richer than the pure categories. I argue that this reading of the distinction, which I call the standard view, should be rejected. In its place, I draw on a neglected part of Kant’s theory of marks – namely, his account of ‘synthetic attributes’ – to propose an account of the distinction that preserves a strict identity between pure and schematized categories at the level of analysable content.

In this introductory article we reconstruct several broad developments in the scholarship on Kant’s theory of natural science with a particular focus on the Anglophone context over the past half-century. Our goal is to illuminate the co-development of Kant scholarship and the philosophy of science during this period and to identify points of influence in both directions. In section 2 we present an overview of the scholarship on Kant’s account of natural laws. In section 3 we survey the diverse interpretations of Kant’s views on biology and consider recent appeals to Kant by philosophers of biology. In section 4 we explore several recent developments in philosophy of science that have potential synergies with Kant scholarship. Our aim is not simply to establish that Kant’s philosophy can have relevance for philosophy of science but also to point out where it has been and continues to be relevant. Appreciating this relevance, we suggest, can help identify productive lines of inquiry for Kant studies.

I examine chapters I and II of the Dialectic of Pure Practical Reason from the Critique of Practical Reason, to show that Kant resolved the antimony of practical reason by first giving an accurate representation of the cause of a properly moral act and then recognizing that this accurate representation raised further problems, problems that were anticipated by Rousseau, especially in his Reveries of a Solitary Walker. Rousseau’s reveries allowed Kant to explore, and to some extent overcome, the darker implications of their common understanding of virtue. In the second Critique this takes the form of explaining how one can understand and existentially achieve one’s own satisfaction based on contentment with oneself rather than enjoyment.

An influential strand in philosophy of science claims that scientific paradigms can be understood as relativized a priori frameworks. Here, Kant’s constitutive a priori principles are no longer held to establish conditions of possibility for knowledge which are unchanging and universally true, but are restricted only to a given scientific domain. Yet it is unclear how exactly a relativized a priori can be construed as both stable and dynamical, establishing foundations for current scientific claims while simultaneously making intelligible the transition to a subsequent framework. In this article, I show that important resources for this problem have been overlooked in Kant’s theory of reflective judgement in the third Critique. I argue that Kant accorded the task of formulating new scientific laws to reflective judgement, which is charged with forming new ‘universals’ that guide the experience of nature. I show that this is the very task attributed to the relativized a priori: the constitution of a given conceptual framework, not of the conditions for object-reference as such. I conclude that Kant’s considered conception of science encompasses the operations of both reflective and determining judgement. Relativizations of the a priori should follow Kant’s lead.

Kant clearly endorses some version of the ‘old formula of the schools’, according to which all volition is sub ratione boni. There has been a debate whether he holds this only for morally good actions. I argue that a closer look at the distinction between the good and the agreeable does not support this conclusion. Considering Kant’s account of the detrimental and the correct use of this thesis, I argue that rational beings always will sub ratione boni, even when they act immorally, because they act on principles. I argue that Kant’s accounts of self-love and self-conceit support this view.

This article examines Kant’s treatment of the design argument for the existence of God, or physicotheology. It criticizes the interpretation that, for Kant, the assumption of intelligent design satisfies an internal demand of inquiry. It argues that Kant’s positive appraisal of physicotheology is instead better understood in terms of its polemical utility for rebutting objections to practical belief in God upon which Kant’s ethicotheological argument rests, and thus as an instrument in the transition from theoretical to practical philosophy. Kantian physicotheology plays this role (a) by criticizing alternative speculative accounts of the ground of nature, and (b) by analogizing from the structure of finite rational agency in order to represent more clearly the action of an ideal agent.

For several decades, Kant scholars, inspired by the Groundwork false-promising example, have constructed consent-based criteria for using another merely as a means. Unfortunately, these consent-based accounts produce assessments that are both counter-intuitive and un-Kantian in relatively simple cases. This article investigates why these consent-based accounts fail and offers an alternative. The Groundwork false-promising example has encouraged a problematically narrow understanding of the conditions for using another merely as a means in virtue of the fact that the example involves a consent-sensitive duty. This article demonstrates that the scope of the prohibition on using another merely as a means includes both consent-sensitive and consent-insensitive duties and offers a duty-based account that reflects this.

Kant’s philosophy of natural science has traditionally concentrated on a host of issues including the role of laws of nature and teleological judgements. However, so far, the literature has made virtually no contact with the no less important tradition in Kant’s legal and political philosophy. This article explores one aspect of such connection in relation to the normative foundations of Kant’s notion of cosmopolitan right. I argue that Kant’s argument for cosmopolitan right is based on two main premises: the first is what I call the law of equilibrium, and the second is the premise of physical interaction (commercium in Latin) at work behind what Kant called the original ‘community of land’. The article argues that the relevant notion of community qua commercium should be understood in the context of Kant’s metaphysics of nature as a ‘real community of substances’ governed by a dynamical law of equality of action and reaction. This metaphysical-causal interpretive reading has far-reaching implications for the foundations of cosmopolitan right and its scope of applicability well beyond Kant’s envisaged right to universal hospitality.

According to Kant’s ethics, at least on one common interpretation, persons have a special worth or dignity that demands respect. But personhood is not coextensive with human life; for example, individuals can live in severe dementia after losing the capacities constitutive of personhood. Some philosophers, including David Velleman and Dennis Cooley, have suggested that individuals living after the loss of their personhood might offend against the Kantian dignity the individuals once possessed. Cooley has even argued that it is morally required on Kantian grounds for those who realize that they will lose their personhood as a result of dementia (e.g. Alzheimer’s) to hasten their deaths (e.g. commit suicide). This article specifies circumstances in which post-personhood living might indeed involve an affront to the Kantian dignity of a person who once was. However, the article contends, Kant implies that it is neither morally required nor even morally permissible for someone in an early stage of Alzheimer’s to hasten their death to avoid such an affront, even if they have autonomously chosen to do so. The article adds an ethical perspective to debate on physician-assisted dying, in particular on the moral permissibility of the soon-to-be-demented ending their lives.

I examine Kant’s claim in part one of Religion within the Boundaries of Mere Reason that moral reform requires both a ‘change of heart’ and gradual reformation of one’s sense (R, 6: 47). I argue that Kant’s conception of moral reform is neither fundamentally obscure nor is it as vulnerable to serious objections as several commentators have suggested. I defend Kant by explaining how he can maintain both that we can choose our moral disposition via an intelligible choice and that we become good through a continuous struggle. I then provide an interpretation of how moral reform occurs in the phenomenal realm.

I attempt first to disentangle three aspects of Kant’s distinction between perfect and imperfect duty. There is the central distinction between principles of duty contrary to that which is contradictory in conception/consistent in conception but contradictory in will. There is also a distinction between essential and non-essential duties: those which cannot, or occasionally can, be passed over consistent with the requirements of morality. Finally, there is a distinction between duties that exhibit a scalar aspect – degrees of goodness or virtue – and duties that do not. My aim is to show how these distinct considerations can be reconciled as aspects of a single distinction, and I conclude that the remarkable complexity of Kant’s perfect/imperfect distinction is actually a strength, rather than a weakness.

Kant famously distinguishes between the methods of mathematics and of metaphysics, holding that metaphysicians err when they avail themselves of the mathematical method. Nonetheless, in the Metaphysical Foundations of Natural Science, he insists that mathematics and metaphysics must jointly ground ‘proper natural science’. This article examines the distinctive contributions and unity of mathematics and metaphysics to the foundations of the science of body. I argue that the two are distinct insofar as they involve distinctive sorts of grounding relations – mathematics pertains to formal grounding, while metaphysics concerns material grounding – while they are unified insofar as they treat motion, the fundamental determination of the science of body.

In Kant’s idealism, all spatiotemporal objects depend on the human mind in a certain way. A central issue here is whether the existence of spatiotemporal things requires that these things are, at least at some point, objects of some actual experience or of a merely possible experience. In this essay, I argue (on textual and philosophical grounds) for the latter view: spatiotemporal things exist (or spatiotemporal events occur) if they are objects of a (suitably qualified) possible experience.

There is no consensus concerning how to understand the ‘two-step proof structure’ (§§15–20, 21–7) of the Transcendental Deduction in the B-edition of the Critique of Pure Reason. This disagreement invites a closer examination of what Kant might have meant by a ‘transcendental deduction’. I argue that the transcendental deduction consists of three tasks that parallel Kant’s broader project of a ‘critique’ of pure reason; first, an origin task to justify reason’s authority to use them; second, an analytical task that determines the conditions under which this authority can be legitimately exercised; and third, a dialectical task to determine the conditions under which this authority cannot be legitimately exercised. So long as we continue to read the B-Deduction solely in terms of its two-step proof structure, we overlook how Kant’s notion of ‘critique’ constitutes the real grounds for his argumentative strategy there.

My aim in this article is to provide an account of practical judgement, for Kant, that situates it within his theory of judgement as a whole – particularly, with regards to the distinction between the determining and reflecting use of judgement. I argue that practical judgement is a kind of determining judgement, but also one in which reflecting judgement plays a significant role. More specifically, I claim that practical judgement arises from the cooperation of the reflecting power of judgement with the faculty of reason – the former assisting the latter in the application of its principle. I conclude by considering a possible role for feeling in practical judgement.