Maxims play a crucial role in Kant's ethical philosophy, but there is significant disagreement about what maxims are. In this two-part essay, I survey eight different views of Kantian maxims, presenting their strengths, and their weaknesses. Part I: Established Approaches, begins with Rüdiger Bubner's view that Kant took maxims to be what ordinary people of today take them to be, namely pithily expressed precepts of morality or prudence. Next comes the position, most associated with Rüdiger Bittner and Otfried Höffe, that (...) maxims are Lebensregeln, or 'life-rules'– quite general rules for how to conduct oneself based on equally general outlooks on how the world is. These first two interpretations make sense of Kant's claim, made in his anthropological and pedagogical writings, that we have to learn how to act on maxims, but they become less plausible in light of Kant's probable view that people always act on maxims – after all, how can people learn how to act on something they always act on anyway? The next two views, each advanced, at different times, by Onora O'Neill, make better sense of the fact that people always act on maxims, for they hold that maxims are intentions – either specific intentions, such as 'to open the door', or general intentions, such as 'to make guests feel welcome'– and it is perfectly sensible to claim that people always act on intentions. However, they face the same problem as the two previous views, which is that if people always act on maxims, what sense does it make to say they also have to learn how to act on them? Henry Allison, the main representative of the fifth view, claims, on the basis of Kant's doctrine of the 'highest maxim', that maxims are principles organized hierarchically, such that an agent endorses one maxim because she endorses a more general maxim. Unfortunately for Allison, there is little direct textual support for his claim that maxims are organized hierarchically. (shrink)

Maxims play a crucial role in Kant's ethical philosophy, but there is significant disagreement about what maxims are. In this two-part essay, I survey eight different views of Kantian maxims, presenting their strengths and their weaknesses. In Part II: New Approaches, I look at three more recent views in somewhat greater detail than I do the five treatments canvassed in 'Recent Works on Kantian Maxims I: Established Approaches'. First, there is Richard McCarty's Interpretation, which holds that Kant's understanding of maxims (...) can be illuminated by placing them in the context of the Wollfian tradition, according to which maxims are the major premises of practical syllogisms. The next subject Maria Schwartz, holds that careful attention to Kant's distinction between rules and maxims, as well as Kant's concept of happiness, allows us to make sense of almost all of Kant's remarks on maxims. It may be, however, that on Schwartz's view agents turn out to perform actions as opposed to thoughtlessly habitual behaviors much less often than is plausible. This leads to the final approach, exemplified by Jens Timmermann, which is that Kant understands maxims equivocally. I claim that something like Timmermann's approach is the only way to make sense of all of what Kant has to say on maxims. (shrink)

Kantians are increasingly deserting the universal law formula in favor of the humanity formula. The former, they argue, is open to various decisive objections; the two are not equivalent; and it is only by appealing to the humanity formula that Kant can reliably generate substantive implications from his theory of an acceptable sort. These assessments of the universal law formula, which clash starkly with Kant's own assessment of it, are based on various widely accepted interpretative assumptions. These assumptions, it is (...) argued in this article, depend on misleading translations of key terms; selective attention to Kant's concrete examples; not taking seriously Kant's theoretical claims about the relations among his various ideas; and a failure to take into account Kant's idiosyncratic definitions of key concepts. The article seeks to right these interpretative wrongs, and finds that the universal law formula is not open to many of the standard objections. (shrink)

Writers like Christine Korsgaard and Allen Wood understand Kant's idea of rational nature as an end in itself as a commitment to a substantive value. This makes it hard for them to explain the supposed equivalence between the universal law and humanity formulations of the categorical imperative, since the former does not appear to assert any substantive value. Nor is it easy for defenders of value-based readings to explain Kant's claim that the law-giving nature of practical reason makes all beings (...) with practical reason regard the idea of a rational nature as an end in itself. This article seeks to replace these value-based readings with a reading of the idea of rational nature as an end that fits better with the overall argument of the Groundwork. (shrink)

This book offers new readings of Kant’s “universal law” and “humanity” formulations of the categorical imperative. It shows how, on these readings, the formulas do indeed turn out being alternative statements of the same basic moral law, and in the process responds to many of the standard objections raised against Kant’s theory. Its first chapter briefly explores the ways in which Kant draws on his philosophical predecessors such as Plato (and especially Plato’s Republic) and Jean-Jacque Rousseau. The second chapter offers (...) a new reading of the relation between the universal law and humanity formulas by relating both of these to a third formula of Kant’s, viz. the “law of nature” formula, and also to Kant’s ideas about laws in general and human nature in particular. The third chapter considers and rejects some influential recent attempts to understand Kant’s argument for the humanity formula, and offers an alternative reconstruction instead. Chapter four considers what it is to flourish as a human being in line with Kant’s basic formulas of morality, and argues that the standard readings of the humanity formula cannot properly account for its relation to Kant’s views about the highest human good. (shrink)

Writers like Christine Korsgaard and Allen Wood understand Kant's idea of rational nature as an end in itself as a commitment to a substantive value. This makes it hard for them to explain the supposed equivalence between the universal law and humanity formulations of the categorical imperative, since the former does not appear to assert any substantive value. Nor is it easy for defenders of value-based readings to explain Kant's claim that the law-giving nature of practical reason makes all beings (...) with practical reason regard the idea of a rational nature as an end in itself. This article seeks to replace these value-based readings with a reading of the idea of rational nature as an end that fits better with the overall argument of the Groundwork. (shrink)

This book argues that we can only develop a proper grasp of Kant s practical philosophy if we appreciate the central role played in it by the notion of the interests of reason. While it is generally acknowledged that Kant does not regard reason as a purely instrumental faculty, this book is the first to show how his notion of reason as guided by its own interests offers the key to some of the most puzzling aspects of his practical philosophy.".