III. The principle is so empty of all content that it does not enable us to judge of any specific act.
A caution should be noticed here, which is equally applicable to the criticism of hedonism: When it is said that the end does not enable us to judge of specific acts, the objection is not that the theory (Kantianism or hedonism, as the case may be) does not give us rules for moral conduct. It is not the business of any theory, however correct as a theory, to lay down rules for conduct. The theory has simply to discover what the end is, and it is the end in view which determines specific acts. It is no more the business of ethics to tell what in particular a man ought to do, than it is of trigonometry to survey land. But trigonometry must state the principles by which land is surveyed, and so ethics must state the end by which conduct is governed. The objection to hedonism and Kantianism is that the end they give does not itself stand in any practical relation to conduct. We do not object to Kantianism because the theory does not help us as to specific acts, but because the end, formal law, does not help us, while the real moral end must determine the whole of conduct.
Suppose a man thrown into the complex surroundings of life with an intelligence fully developed, but with no previous knowledge of right or wrong, or of the prevailing moral code. He is to know, however, that goodness is to be found in the good will, and that the good will is the will moved by the mere idea of the universality of law. Can we imagine such an one deriving from his knowledge any idea of what concrete ends he ought to pursue and what to avoid? He is surrounded by special circumstances calling for special acts, and all he knows is that whatever he does is to be done from respect for its universal or legislative quality. What community is there between this principle and what he is to do? There is no bridge from the mere thought of universal law to any concrete end coming under the law. There is no common principle out of which grows the conception of law on one hand, and of the various special ends of action, on the other.
Suppose, however, that ends are independently suggested or proposed, will the Kantian conception serve to test their moral fitness? Will the conception that the end must be capable of being generalized tell us whether this or that end is one to be followed? The fact is, that there is no end whatever that in or by itself, cannot be considered as self-identical, or as universal. If we presuppose a certain rule, or if we presuppose a certain moral order, it may be true that a given motive cannot be universalized without coming into conflict with this presupposed rule or order. But aside from some moral system into connection with which a proposed end may be brought, for purposes of comparison, lying is just as capable as truth-telling of generalization. There is no more contradiction in the motive of universal stealing than there is in that of universal honesty—unless there is as standard some order or system of things into which the proposed action is to fit as a member. And this makes not the bare universality of the act, but the system, the real criterion for determining the morality of the act.
Thus Mill remarks, regarding Kant's four illustrations (Ante, [p. 80]), that Kant really has to employ utilitarian considerations to decide whether the act is moral or not.
For the foregoing criticisms, see Bradley, Ethical Studies, Essay IV; Caird, Op. cit., Vol. II, pp. 185-186, and 212-214, and, indeed, the whole of ch. II of Bk. II.
XXX.
Criticism of Kantian Criterion of Conduct.
2. With reference to the furnishing of a common good or end. If the Kantian end is so formal and empty as not to enable us to bring into relation with one another the various acts of one individual, we may agree, without argument, that it does not provide us with an end which shall unify the acts of different men into a connected order of conduct. The moral end, the acting from regard for law as law, is presented to each individual by himself, entirely apart from his relations to others. That he has such relations may, indeed, furnish additional material to which the law must be applied, but is something to which the character of the law is wholly indifferent. The end is not in itself a social end, and it is a mere accident if in any case social considerations have to be taken into account. It is of the very quality of the end that it appeals to the individual as an isolated individual.
It is interesting to note the way in which Kant, without expressly giving up the purely formal character of the moral end, gives it more and more content, and that content social. The moral law is not imposed by any external authority, but by the rational will itself. To be conscious of a universal self-imposed law is to be conscious of one's self as having a universal aspect. The source of the law and its end are both in the will—in the rational self. Thus man is an end to himself, for the rational self is man. Such a being is a person—"Rational beings are persons, because their nature marks them out as ends in themselves, i. e., as beings who should never be used merely as means.... Such beings are not ends simply for us, whose existence as brought about by our action has value, but objective ends, i. e., beings whose existence is an end in itself, an end for which no other end can be substituted so as to reduce it to a mere means." Thus, we get a second formula. "Always treat humanity, both in your own person and in the person of others, as an end and never merely as a means." (Abbott's Trans., pp. 46-47; Caird, Op. cit., Vol. II, 219). Here the criterion of action is no longer the bare self-consistency of its motive, but its consistency with the rational nature of the agent, that which constitutes him a person. And, too, "the will of every rational being is likewise a universally law-giving will." (Abbott, p. 49). The conception of humanity embodied in others as well as in one's self is introduced, and thus our criterion is socialized. Even now, however, we have a lot of persons, each of whom has to be considered as an end in himself, rather than a social unity as to which every individual has an equal and common reference. Kant advances to this latter idea in his notion of a "Kingdom of ends." "We get the idea of a complete and systematically connected totality of all ends—a whole system of rational beings as ends in themselves as well as of the special ends which each of them may set up for himself—i.e., a kingdom of ends.... Morality is the reference of all deeds to the legislation which alone can make such a kingdom possible." (See Abbott's Trans., pp. 51-52). This transformation of a mere formal universal into a society or kingdom of persons—while not sufficiently analyzed as Kant states it (see Caird, Vol. II, pp. 225-226)—gives us truly a social criterion, and we shall hereafter meet something resembling it as the true ideal. As finally stated, it does not differ in essential content from Mill's individual who "conceives of himself only as a member of a body," or from Spencer's free man in a free society.