In Kant’s moral theory, we do not have duties to animals, though we have duties with regard to them. I reconstruct Kant’s arguments for several types of duties with regard to animals and show that Kant’s theory imposes far more robust requirements on our treatment of animals than one would expect. Kant’s duties regarding animals are perfect and imperfect; they are primarily but not exclusively duties to oneself; and they condemn not merely cruelty to animals for its own sake, but (...) also, such things as killing them for food when our health does not require it and ingratitude to service animals. Central to understanding these duties is appreciating Kant’s concern for our morally useful emotions, for it is primarily because of the effect that cruelty to animals has on our sympathetic emotions—which greatly help us treat other rational beings appropriately—that we have duties not to be cruel to animals. Yet cruelty and callousness toward animals are not problematic only because they may weaken some of our morally useful emotions. Cuelty and callousness toward animals are problematic also because they oppose our morally useful emotions; these emotions, as part of the perfection of our nature, should be honored, supported, and furthered, unless there are compelling reasons not to do so in particular cases. (shrink)

Kant claims that we have a duty to promote our own moral perfection, but not the moral perfection of others. I examine three types of argument for this asymmetry, as well as the implications of these arguments--and their success or failure--for Kantian theory. The arguments I consider say that (first) to promote others’ perfection is impossible; (second) to try to promote others’ perfection is impermissible; and (third) one cannot be obligated to promote both others’ perfection and one’s own. I argue (...) that none of these arguments establishes Kant’s conclusion. Since the formula of humanity grounds a duty to promote our own perfection out of respect for our rational nature, the absence of an argument denying that we must promote others’ perfection suggests that we must do so (out of respect for their rational nature). Even so, Kant’s theory discourages moral paternalism and takes perfection to be a primarily self-regarding project. Thus, I also show that a Kantian duty to promote the moral perfection of others would be unobjectionable, despite the problems such a duty might initially seem to invite. (shrink)

I consider Kant’s use of claims about “nature’s ends” in his arguments to establish maxims of homosexual sex, masturbation, and bestiality as constituting “unnatural” sexual vices, which are contrary to one’s duties to oneself as an animal and moral being. I argue, first, that the formula of humanity is the principle best suited for understanding duties to oneself as an animal and moral being; and second, that although natural teleology is relevant to some degree in specifying these duties, it cannot (...) play a sufficiently robust role to establish Kant’s conclusion. I also discuss what the formula of humanity (along with warranted attention to natural teleology) suggests about the morality of homosexual sex, masturbation, and bestiality. (shrink)

This paper investigates the nature and foundation of duties to oneself in Kant's moral theory. Duties to oneself embody the requirement of the formula of humanity that agents respect rational nature in them-selves as well as in others. So understood, duties to oneself are not subject to the sorts of conceptual objections often raised against duties to oneself; nor do these duties support objections that Kant's moral theory is overly demanding or produces agents who are preoccupied with their own virtue. (...) Duties to oneself emerge as an essential and compelling part of Kant's moral theory. (shrink)

I clarify Kant's classification of duties and criticize the apocryphal tradition that, according to Kant, perfect duties trump imperfect duties. I then use Kant's view to argue that judges who believe that an action is immoral and should be illegal need not set aside their beliefs in order to comply with binding precedents that permit the action. The same view of morality that causes some people to oppose certain actions, including abortion, requires lower–court judges to comply with binding precedents. Therefore, (...) someone's opposition to legal abortion, by itself, does not justify opposing that person's nomination to a lower court. (shrink)

The distinction between perfect and imperfect obligations has a long history in moral philosophy and is important to many central issues in moral theory and in everyday morality. Unfortunately, this distinction is often overlooked and rarely defined precisely or univocally. This paper tries to clarify the distinction in light of recent empirical research on guilt and shame. I begin with the general notion of an obligation before distinguishing its sub-classes.

Jeremy Waldron has recently raised the question of whether there is anything approximating the creative self-authorship of personal autonomy in the writings of Immanuel Kant. After considering the possibility that Kantian prudential reasoning might serve as a conception of personal autonomy, I argue that the elements of a more suitable conception can be found in Kant’s Tugendlehre or Doctrine of Virtue--specifically, in the imperfect duties of self-perfection and the practical love of others. This discovery is important for at least three (...) reasons: first, it elucidates the relationship among the various conceptions of autonomy employed by personal-autonomy theorists and contemporary Kantians; second, it brings to the surface previously unnoticed or undernoticed features of Kant's moral theory; and third, it provides an essential line of defense against certain critiques of contemporary Kantian theories, especially that of John Rawls. (shrink)