THE THREAT OF HETERONOMY
In the Second Section of the Grounding for the Metaphysics of Morals, written in 1785, one finds an argument structured very closely along the lines of the turn that Kant will later associate with the name Copernicus. In the same way that it is impossible in the epistemological realm to explain the possibility of a priori knowledge if one assumes that knowledge must conform to objects, âso too, in the practical context, one cannot explain the possibility of a categorical imperative, or more generally, an a priori practical principle with the requisite universality and necessityâ8 if one continues to assume that an object of the will is the source of moral requirements.
In every case where an object of the will [ein Objekt des Willens] must be laid down as the grounds [zum Grunde gelegt werden muĂ] for prescribing a rule to determine the will, there the rule is nothing but heteronomy; the imperative is conditioned, viz.: if or because one wills this object, one should act thus or thus; hence the imperative can never command morally, i.e. categorically. (Gr 444; 47)
If the will goes outside of itself and seeks the law of its determination âin the property [Beschaffenheit] of any of its objects [Objekte]â (Gr 441; 45) then heteronomy is always the result. Heteronomy is the result when the will is determined by any âforeign impulse [fremder Antrieb]â (Gr 444; 47) whatsoever, whether this foreign impulse determines the will by means of sensibility or by means of reason directed to objects of our possible volition (e.g. the pursuit of perfection).
Autonomy of the will, on the other hand, is introduced in the Grundlegung as the necessary condition of the possibility of moral law. In the case of a finite rational being, the defining characteristic of autonomy of the will is not an independence from causal determination by alien sourcesâour needs or desires as sensuous beingsâsince such independence (which Kant calls ânegative freedomâ) is already presupposed by Kantâs notion of practical spontaneity and by the very concept of an arbitrium liberum. Rather it is a âmotivational independence, that is, a capacity for self-determination independently of, and even contrary to these needs.â9 Kant identifies autonomy with âthe property [Beschaffenheit ] that the will has of being a law to itself (independently of any property of the objects of volition [GegenstĂ€nde des Wollens])â (Gr 440; 44). Only if the will possesses this property, only if the will is its own supreme lawgiver, can one account for the possibility of something other than a conditioned or hypothetical imperative. The principle of autonomy, âdas alleinige Prinzip der Moralâ (Gr 440), is, consequently, the expression of the requirement to act on the basis of this property. As principle, autonomy demands that one act from a self-determined, desire-independent motive (for imperfectly rational beings who are constitutionally susceptible to self-deception, this expression must take the form of a command, namely the categorical imperative). The supreme principle of morality enjoins all rational beings with a will to choose maxims that are suitable as universal laws not because of some outside interest or desire but rather because of their very suitability for universal law. An unconditioned practical principle knows no restrictions; it contains only the necessity that universalizability function as the ultimate standard governing all choice of maxims. Thus, on the one hand, a universally and unconditionally valid practical law must be formal in the sense that it must abstract from any material object of the will; on the other hand, it requires that a maxim be adopted solely for its legislative form, i.e. its universalizability. Autonomy of the will is therefore both the necessary condition of the possibility of the moral law (it must be a property of the will) and the expression of this possibility as law (it is the principle of morality).
But a necessity âthat is unconditioned and ... objective and hence universally validâ (Gr 416; 26) such as the moral law requires cannot be derived from the particular constitution of human beings. For no example drawn from human experience can testify to a will that has been determined solely by universal law without other incentive or desire (such may appear to be the case, of course, but, as Kant reminds us, the possibilities of self-deception are infinite and imperceptible). Indeed the threat of heteronomy is so great for human beings and oneâs human allegiance to the âdear self [das liebe Selbst]â (Gr 407; 20) so ineradicable that the world has perhaps never seen an example of a moral action that âwould have sprung [entsprungen wĂ€re]â (Gr 408; 20) from pure and unmixed sources.
And the threat of heteronomy is greater still, for, as Kant declares, the principle of heteronomy is the bane of all moral theories. Not only are morals âliable to all kinds of corruptionâ (Gr 390; 3), but moral philosophy itself risks confusing pure principles with impure ones and thus âspoil[ing]... the purity of morals and counteract[ing] its own endâ (Gr 390; 3). When moral philosophy does not begin with pure philosophy (metaphysics), when moral philosophy does not begin by purifying its principles of the very conditions of human desire10âconditions that can only be known a posterioriâthen âthere can be no moral philosophy at allâ (Gr 390; 3), that is, no moral philosophy that could give account of the objective necessity (non-anthropological, non-theological) of moral law. As sensuous beings, we have a natural âpropensity [Hang]â to quibble with the strict laws of duty and to make them, wherever possible, âmore compatible with our wishes and inclinationsâ (Gr 405; 17). But when the language of desire (inclination, taste) permeates so much of our contemporary literature on Kantâwhether it be in terms of making Kantâs moral philosophy more âpalatableâ or less ârepugnantâ in the tradition of Schiller, or dismissing it as âunsatisfyingâ in the tradition of Hegel11âit becomes not only timely but urgent to raise the question of Kantâs formalism once again. Is it possible that, in the name of our palate and our sensibility, in the name of heteronomy itself, Kantâs defenders and prosecutors alike have in fact, right from the start, âcorruptedâ the moral law in its foundation and destroyed its âdignity [WĂŒrde]â (Gr 405; 17)? For, as we all knowâand the practical threat is very real today in academic philosophyâit is certainly bad for the business of moral philosophy when it does not give us what we want.
Indeed Kantâs formalism has inspired such resistance that one begins to suspect that it is formalism itself that must be banished from our midst (like Coriolanus), no matter how rigorous and enriching its analytic powers.12 In the wake of Kantâs categorical imperative, how many a well-intentioned moral theory has arisen whose aim is always to bring the abstract, formal structures of philosophy into a harmonious expression with their concrete, human , and worldly effects?13 And yet, as Kant warns us repeatedly, theories based on human inclination or desire can produce only monstrosities. Such theories leave us not with morality at all but, much to our horror and surprise, with âsome ill-begotten bastard patched up from limbs of quite varied ancestry [einen aus Gliedern ganz verschiedener Abstammung zusammengeflickten Bastard]â (Gr 426; 34). The defenders of Kant who fear the great philosopher may have forsaken or betrayed the world by being too formalistic may be assuming all too readily that when we refer to something called âthe humanâ we know what it is we are talking about, even though there is probably no word whose changing definition in thi...