Immanuel Kant's Fundamental Principles of the Metaphysics of Morals: Second Section and Third Section

Read the Second Section from Immanuel Kant's Fundamental Principles of the Metaphysics of Morals. Kant says five things are clear:

  1. The origin of moral concepts is entirely a priori in reason.
  2. Moral concepts cannot be abstracted from empirical knowledge.
  3. The non-empirical, pure, nature of moral concepts dignify them as being supreme practical principles.
  4. This value of moral concepts as pure and thus good practical principles is reduced if any empirical knowledge is added in.
  5. One must derive for oneself and apply these moral concepts also from pure reason ­– unmixed with empirical knowledge.

Do these claims seem as clear and correct to you as they do to Kant? What is Kant referring to in his concept of the categorial imperative? 

Kant gives a second version of the categorical imperative which he called the practical imperative. Interpreters sometimes call it the imperative of dignity or of human dignity. Can you describe that version of the categorical imperative?

Kant says these two versions of the categorical imperative ultimately say the same thing. Why do you think he believes this?

Unlike our study of hypothetical examples in this course, Kant believes that morality is not something that can be derived from examples. What he wants is to find universal principles of morality that spring wholly from reason and not from experience. This is why he calls his system metaphysics of morals. In the second section, Kant argues forcefully against utilitarian (or popular) moral theories, and he puts forward his own, absolutely binding moral principle: the categorical imperative.

In Kant's ethical theory, a categorical imperative is a universal command, a principle that should be followed by anyone in any situation. If a command like "always tell the truth" can be chosen and represents a moral rule we all should follow, then it has the status of a categorical imperative, and is therefore a duty. Kant's examples in this section are meant to show that actions can only be considered truly moral if they are motivated by the duty to follow this imperative.

What does Kant mean by autonomy and heteronomy? Kant gives a third version of the categorical imperative in this section. What is this version? Here, Kant is concerned here that our principles of morality must come from ourselves and from our own rationality. However, he thinks of our rationality in universal terms, not as our own individual persuasion or opinion. Rationality and rational morality is always an objective science for Kant.

In the third section, Kant presents his view of what human freedom consists in, namely, following our rational principles rather than being guided by our appetite for please and our desire to avoid pain. Because Kant has based both freedom and morality on rationality, this means that to be free is to be moral. Or, in other words, to be free is to be bound by our duty to ourselves.

Classification of all Principles of Morality which can be founded on the Conception of Heteronomy

Here as elsewhere human reason in its pure use, so long as it was not critically examined, has first tried all possible wrong ways before it succeeded in finding the one true way.

All principles which can be taken from this point of view are either empirical or rational. The former, drawn from the principle of happiness, are built on physical or moral feelings; the latter, drawn from the principle of perfection, are built either on the rational conception of perfection as a possible effect, or on that of an independent perfection (the will of God) as the determining cause of our will.

Empirical principles are wholly incapable of serving as a foundation for moral laws. For the universality with which these should hold for all rational beings without distinction, the unconditional practical necessity which is thereby imposed on them, is lost when their foundation is taken from the particular constitution of human nature, or the accidental circumstances in which it is placed. The principle of private happiness, however, is the most objectionable, not merely because it is false, and experience contradicts the supposition that prosperity is always proportioned to good conduct, nor yet merely because it contributes nothing to the establishment of morality- since it is quite a different thing to make a prosperous man and a good man, or to make one prudent and sharp-sighted for his own interests and to make him virtuous- but because the springs it provides for morality are such as rather undermine it and destroy its sublimity, since they put the motives to virtue and to vice in the same class and only teach us to make a better calculation, the specific difference between virtue and vice being entirely extinguished. On the other hand, as to moral feeling, this supposed special sense, * the appeal to it is indeed superficial when those who cannot think believe that feeling will help them out, even in what concerns general laws: and besides, feelings, which naturally differ infinitely in degree, cannot furnish a uniform standard of good and evil, nor has anyone a right to form judgements for others by his own feelings: nevertheless this moral feeling is nearer to morality and its dignity in this respect, that it pays virtue the honour of ascribing to her immediately the satisfaction and esteem we have for her and does not, as it were, tell her to her face that we are not attached to her by her beauty but by profit.

     * I class the principle of moral feeling under that of
     happiness, because every empirical interest promises to
     contribute to our well-being by the agreeableness that a
     thing affords, whether it be immediately and without a view
     to profit, or whether profit be regarded. We must likewise,
     with Hutcheson, class the principle of sympathy with the
     happiness of others under his assumed moral sense.

Amongst the rational principles of morality, the ontological conception of perfection, notwithstanding its defects, is better than the theological conception which derives morality from a Divine absolutely perfect will. The former is, no doubt, empty and indefinite and consequently useless for finding in the boundless field of possible reality the greatest amount suitable for us; moreover, in attempting to distinguish specifically the reality of which we are now speaking from every other, it inevitably tends to turn in a circle and cannot avoid tacitly presupposing the morality which it is to explain; it is nevertheless preferable to the theological view, first, because we have no intuition of the divine perfection and can only deduce it from our own conceptions, the most important of which is that of morality, and our explanation would thus be involved in a gross circle; and, in the next place, if we avoid this, the only notion of the Divine will remaining to us is a conception made up of the attributes of desire of glory and dominion, combined with the awful conceptions of might and vengeance, and any system of morals erected on this foundation would be directly opposed to morality.

However, if I had to choose between the notion of the moral sense and that of perfection in general (two systems which at least do not weaken morality, although they are totally incapable of serving as its foundation), then I should decide for the latter, because it at least withdraws the decision of the question from the sensibility and brings it to the court of pure reason; and although even here it decides nothing, it at all events preserves the indefinite idea (of a will good in itself free from corruption, until it shall be more precisely defined.

For the rest I think I may be excused here from a detailed refutation of all these doctrines; that would only be superfluous labour, since it is so easy, and is probably so well seen even by those whose office requires them to decide for one of these theories (because their hearers would not tolerate suspension of judgement). But what interests us more here is to know that the prime foundation of morality laid down by all these principles is nothing but heteronomy of the will, and for this reason they must necessarily miss their aim.

In every case where an object of the will has to be supposed, in order that the rule may be prescribed which is to determine the will, there the rule is simply heteronomy; the imperative is conditional, namely, if or because one wishes for this object, one should act so and so: hence it can never command morally, that is, categorically. Whether the object determines the will by means of inclination, as in the principle of private happiness, or by means of reason directed to objects of our possible volition generally, as in the principle of perfection, in either case the will never determines itself immediately by the conception of the action, but only by the influence which the foreseen effect of the action has on the will; I ought to do something, on this account, because I wish for something else; and here there must be yet another law assumed in me as its subject, by which I necessarily will this other thing, and this law again requires an imperative to restrict this maxim. For the influence which the conception of an object within the reach of our faculties can exercise on the will of the subject, in consequence of its natural properties, depends on the nature of the subject, either the sensibility (inclination and taste), or the understanding and reason, the employment of which is by the peculiar constitution of their nature attended with satisfaction. It follows that the law would be, properly speaking, given by nature, and, as such, it must be known and proved by experience and would consequently be contingent and therefore incapable of being an apodeictic practical rule, such as the moral rule must be. Not only so, but it is inevitably only heteronomy; the will does not give itself the law, but is given by a foreign impulse by means of a particular natural constitution of the subject adapted to receive it. An absolutely good will, then, the principle of which must be a categorical imperative, will be indeterminate as regards all objects and will contain merely the form of volition generally, and that as autonomy, that is to say, the capability of the maxims of every good will to make themselves a universal law, is itself the only law which the will of every rational being imposes on itself, without needing to assume any spring or interest as a foundation.

How such a synthetical practical a priori proposition is possible, and why it is necessary, is a problem whose solution does not lie within the bounds of the metaphysic of morals; and we have not here affirmed its truth, much less professed to have a proof of it in our power. We simply showed by the development of the universally received notion of morality that an autonomy of the will is inevitably connected with it, or rather is its foundation. Whoever then holds morality to be anything real, and not a chimerical idea without any truth, must likewise admit the principle of it that is here assigned. This section then, like the first, was merely analytical. Now to prove that morality is no creation of the brain, which it cannot be if the categorical imperative and with it the autonomy of the will is true, and as an a priori principle absolutely necessary, this supposes the possibility of a synthetic use of pure practical reason, which however we cannot venture on without first giving a critical examination of this faculty of reason. In the concluding section we shall give the principal outlines of this critical examination as far as is sufficient for our purpose.