'Two things', wrote Kant, 'fill the mind with ever new and increasing admiration and awe: the starry heavens above and the moral law within'. Many would argue that since Kant's day, the study of the starry heavens has advanced while ethics has stagnated, and in particular that Kant's ethics offers an empty formalism that tells us nothing about how we should live. In Acting on Principle Onora O'Neill shows that Kantian ethics has practical as well as philosophical importance. First published (...) in 1975, the book is regarded as a classic account and defence of the Kantian ethical position. It addresses Kant's account of reasoning about action, in particular his controversial claim that the Categorical Imperative guides action and is basic to ethics and justice. This second edition offers a substantial new introduction and updated bibliography, and will be valuable for a wide readership in Kant studies and those studying ethics. (shrink)

'Two things', wrote Kant, 'fill the mind with ever new and increasing admiration and awe: the starry heavens above and the moral law within'. Many would argue that since Kant's day, the study of the starry heavens has advanced while ethics has stagnated, and in particular that Kant's ethics offers an empty formalism that tells us nothing about how we should live. In Acting on Principle Onora O'Neill shows that Kantian ethics has practical as well as philosophical importance. First published (...) in 1975, the book is regarded as a classic account and defence of the Kantian ethical position. It addresses Kant's account of reasoning about action, in particular his controversial claim that the Categorical Imperative guides action and is basic to ethics and justice. This second edition offers a substantial new introduction and updated bibliography, and will be valuable for a wide readership in Kant studies and those studying ethics. (shrink)

Richard Henson attempts to take the sting out of this view of Kant on moral worth by arguing (i) that attending to the phenomenon of the overdetermination of actions leads one to see that Kant might have had two distinct views of moral worth, only one of which requires the absence of cooperating inclinations, and (ii) that when Kant insists that there is moral worth only when an action is done from the motive of duty alone, he need not also (...) hold that such a state of affairs is morally better, all things considered, than one where supporting inclination is present. Henson's proposals seem to me both serious and plausible. I do not think that either of his models, in the end, can take on the role Kant assigns to moral worth in the argument of the Groundwork. But seeing the ways Henson's account diverges from Kant's makes clearer what Kant intended in his discussion of those actions he credits with moral worth. [...] An action has moral worth if it is required by duty and has as its primary motive the motive of duty. The motive of duty need not reflect the only interest the agent has in the action (or its effect); it must, however, be the interest that determines the agent's acting as he did. (shrink)

This classic and controversial book examines the roots of the idea of virtue, diagnoses the reasons for its absence in modern life, and proposes a path for its recovery.

My purpose is to account for some oddities in what Kant did and did not say about "moral worth," and for another in what commentators tell us about his intent. The stone with which I hope to dispatch these several birds is-as one would expect a philosopher's stone to be-a distinction. I distinguish between two things Kant might have had in mind under the heading of moral worth. They come readily to mind when one both takes account of what he (...) actually said about it and notices a fact which he did not seem to notice: namely, that dutiful action- action which, whatever its motive, fulfills a duty-can be over- determined, and determined in particular by both respect for duty and some consortium of inclinations and prudenc. (shrink)

If any action is to be morally good it is not enough that it should conform to the moral law-it must also be done for the sake of the moral law: where this is not so, the conformity is only too contingent and precarious, since the nonmoral ground at work will now and then produce actions which accord with the law, but very often actions which transgress it.

Early in the Preface to Religion within the Limits of Reason Alone, Kant claims that “morality leads ineluctably to religion”. This thesis is hardly an innovation of the Religion. Again and again throughout the critical corpus, Kant argues that religious belief is ethically significant, that it makes a morally meaningful difference whether an agent believes or disbelieves. And yet these claims are surely among the most doubted of Kant's positions – and they are often especially doubted by readers who consider (...) themselves Kantians. That Kant of all people should have so cherished religion is perhaps surprising: his moral view enshrines the notion that moral worth arises solely form the “good will”, that is, from a will determined by the moral law. Kant claims to be able to deduce this law and to account for how it motivates without ever relying on religious propositions. Rather, he grounds morality in the conception of autonomy, in the absolutely free self-legislation of the moral principle. So why, after effecting this dramatic Copernican revolution in ethics, does Kant appear to backslide, insisting on the moral necessity of religious belief? (shrink)

Section I of Kant's Groundwork of the Metaphysics of Morals is meant to lead us from our everyday conception of morality to the supreme principle of all moral action, officially christened the ‘categorical imperative’ some twenty Academy pages further into the treatise. It is quite striking that in this first section Kant dispenses with the notorious technical language that pervades not just other parts of the Groundwork but also most of the remaining philosophical writings of the critical period. The mere (...) fact that Groundwork I is comparatively accessible does not, of course, make it straightforward or uncontroversial. Kant's readers are faced with, amongst other things, four unconvincing paragraphs on the natural purpose of practical reason (G IV 394–6), a crucial change of topic from good volition to acting from duty (G IV 397), an unstated ‘first proposition’ about moral value that has baffled generations of interpreters (presumably G IV 397–9), and a contentious shift from an allegedly unproblematic principle of practical universalizability to a substantive moral command (G IV 402). (shrink)