Table of Contents
| Introduction | |
| Chronology | |
| Further reading | |
| Preface | 1 |
| Sect. I | Transition from common rational to philosophic moral cognition | 7 |
| Sect. II | Transition from popular moral philosophy to metaphysics of morals | 19 |
| Sect. III | Transition from metaphysics of morals to the critique of pure practical reason | 52 |
| Notes | 67 |
| Selected glossary | 68 |
| Index | 71 |
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ANALYSIS OF THE ARGUMENT
Chapter One
THE APPROACH TO MORAL PHILOSOPHYPages I-3.The good will.The only thing that is good without qualification or restriction is a good will. That is to say, a good will alone is good in all circumstances and in that sense is an absolute or unconditioned good. We may also describe it as the only thing that is good in itself, good independently of its relation to other things.
This does not mean that a good will is the only good. On the contrary, there are plenty of things which are good in many respects. These, however, are not good in all circumstances, and they may all be thoroughly bad when they are used by a bad will. They are therefore only conditioned goodsthat is, good under certain conditions, not good absolutely or in themselves.
Pages 3-4.The good will and its results.The goodness of a good will is not derived from the goodness of the results which it produces. The conditioned goodness of its products cannot be the source of the unconditioned goodness which belongs to a good will alone. Besides, a good will continues to have its own unique goodness even where, by some misfortune, it is unable to produce the results at which it aims.
There is nothing in this to suggest that for Kant a good will does not aim at producing results. He holds, on the contrary, that a good will, and indeed any kind of will, must aim at producing results.
Pages 4-8.The function of reason.Ordinary moral consciousness supports the view that a good will alone is anunconditioned good. Indeed this is the presupposition (or condition) of all our ordinary moral judgements. Nevertheless the claim may seem to be fantastic, and we must seek further corroboration by considering the function of reason in action.
In order to do this we have to presuppose that in organic life every organ has a purpose or function to which it is well adapted. This applies also to mental life; and in human beings reason is, as it were, the organ which controls action, just as instinct is the organ which controls action in animals. If the function of reason in action were merely to attain happiness, this is a purpose for which instinct would have been a very much better guide. Hence if we assume that reason, like other organs, must be well adapted to its purpose, its purpose cannot be merely to produce a will which is good as a means to happiness, but rather to produce a will which is good in itself.
Such a purposive (or teleological) view of nature is not readily accepted to-day. We need only note that Kant does hold this belief (though by no means in a simple form) and that it is very much more fundamental to his ethics than is commonly supposed. In particular we should note that reason in action has for him two main functions, the first of which has to be subordinated to the second. The first function is to secure the individual's own happiness (a conditioned good), while the second is to manifest a will good in itself (an unconditioned good).
Page 8.The good will and duty.Under human conditions, where we have to struggle against unruly impulses and desires, a good will is manifested in acting for the sake of duty. Hence if we are to understand human goodness, we must examine the concept of duty. Human goodness is most conspicuous in struggling against the obstacles placed in its way by unruly impulses, but it must not be thought that goodness as such consists in overcoming obstacles. On the contrary, a perfectly good will would have no obstacles to overcome, and the concept of duty (which involves the overcoming of obstacles) would not apply to such a perfect will.
Pages 8-13.The motive of duty.A human action is morally good, not because it is done from immediate inclinationstill less because it is done from self-interestbut because it is done for the sake of duty. This is Kant's first proposition about duty, though he does not state it in this general form.
An actioneven if it accords with duty and is in that sense rightis not commonly regarded as morally good if it is done solely out of self-interest. We may, however, be inclined to attribute moral goodness to right actions done solely from some immediate inclinationfor example, from a direct impulse of sympathy or generosity. In order to test this we must isolate our motives: we must consider first an action done solely out of inclination and not out of duty, and then an action done solely out of duty and not out of inclination. If we do this, then, we shall findto take the case most favourable to immediate inclinationthat an action done solely out of natural sympathy may be right and praiseworthy, but that nevertheless it has no distinctively moral worth. The same kind of action done solely out of duty does have distinctively moral worth. The goodness shown in helping others is all the more conspicuous if a man does this for the sake of duty at a time when he is fully occupied with his own troubles and when he is not impelled to do so by his natural inclinations.
Kant's doctrine would be absurd if it meant that the presence of a natural inclination to good actions (or even of a feeling of satisfaction in doing them) detracted from their moral worth. The ambiguity of his language lends some colour to this interpretation, which is almost universally accepted. Thus he says that a man shows moral worth if he does good, not from inclination, but from duty. But we must remember that he is here contrasting two motives taken in isolation in order to find out which of them is the source of moral worth. He would have avoided the ambiguity if he had said that a man shows moral worth, not in doing good from inclination, but in doing it for the sake of duty. It is the motive of duty, not the motive of inclination, that gives moral worth to an action.