Andrews Reath

Kantians often talk about the capacity to set ends for oneself through reason and those who do assume that Kant regarded the capacity to set ends as a rational power or a component of practical reason. ‘Natural perfection’, Kant says, ‘is the cultivation of any capacities whatever for furthering ends set forth by reason’, and he refers to ‘humanity’ as the ‘capacity to set oneself any end at all’ or ‘the capacity to realize all sorts of possible ends’.¹ ‘Humanity’ comprises the full range of human rational capacities, one of which is the capacity to adopt a wide variety of ends, including ends that are not morally required by pure practical reason.² Likewise Kant refers to ‘culture’ as ‘the aptitude and skill for all sorts of ends for which he can use nature (internal and external)’, or as ‘the production of the aptitude of a rational being for any ends in general (thus those of his freedom).’³ Christine Korsgaard characterizes ‘humanity’ as follows.

This paper surveys some themes of Allison's Kant's Theory of Freedom, and then raises a problem for his presentation of Kant's Reciprocity Thesis. Allison argues that a transcendentally free agent is bound to the moral law as follows. Rational agents fall under a justification requirement, and when transcendental freedom is added to the concept of rational agency, the justification requirement extends to the choice of fundamental maxims. Since facts about one's nature cannot justify the adoption of fundamental maxims, all that remains are considerations that anyone can recognize as valid. Thus a transcendentally free agent must conform to unconditional laws. The problem is that it is unclear how a transcendentally free agent can make a reasoned choice of fundamental principles; but if it can, why can't it choose the Principle of Happiness? I suggest that a stronger version of this argument results from adopting a richer notion of a transcendentally free agent as an autonomous sovereign will with an interest in expressing its sovereignty

Kant’s project in ethics is to defend the conception of morality that he takes to be embedded in ordinary thought. The principal aims of his foundational works in ethics – the Groundwork of the Metaphysics of Morals and the Critique of Practical Reason – are to state the fundamental principle of morality, which he terms the “Categorical Imperative”, and then to give an account of its unconditional authority – why we should give moral requirements priority over non-moral reasons – by grounding it in the nature of free rational agency. Roughly the principle of morality gets its authority from the fact that it is by acting from this principle that we exercise our free agency. In these works Kant develops a distinctive account of the content of moral requirement (which is filled out in his later work, The Metaphysics of Morals). According to one version of the Categorical Imperative, we determine what sorts of actions are permissible or required in various situations by asking whether a principle of action is rationally willed as universal law for agents with autonomy. A second version of the Categorical Imperative derives the content of morality from the principle that we are to respect “humanity”, or “rational nature”, as an “end in itself” and never merely as a means. “Humanity” is the capacity for autonomous rational choice, and it includes the capacity to act from one’s own judgment of what one has reason to do, to set ends for oneself, and to guide one’s actions by values one finds it reasonable to accept. To hold that this capacity is an end in itself is to claim that it has an absolute value – a value that Kant terms “dignity” – that sets limits on the..