Jean Hampton is at the Department of Philosophy, University of Arizona, Tuscon, AZ 85721 USA.
I am grateful to the Social Philosophy and Policy Center at Bowling Green State University for supporting me during some of the time this paper was written. I would also like to thank Tom Christiano, Don Garrett, Ken O'Day, David Owen, and Terry Price for discussions about some of the issues raised in this paper. Finally, I would like to thank the Pew Foundation, whose grant to me through the Pew Evangelical Scholars Program, made much of the research for this paper possible.
1. That is, the agent's belief must satisfy epistemic norms regarding belief formation.
2. But I believe there are positions that are reasonably called instrumentalist that have a somewhat different characterization. See Jean Hampton, "On Instrumental Rationality," in Essays in Honor of Kurt Baier, edited by J. Schneewind (La Salle: Open Court, 1996).
3. See Immanuel Kant, Religion Within the Limits of Reason Alone for his mature account of the sufficiency of moral motives, and the role of the human will in choosing these motives to prevail against any conflicting motives.
4. J.L. Mackie, Ethics: Inventing Right and Wrong (Harmondsworth: Penguin, 1977).
5. For one well-known discussion of the ontological commitments science seems to require of us, see W.V. Quine, "Facts of the Matter," in American Philosophy from Edwards to Quine, edited by R.W. Shahan and K.R. Merrill (Norman: University of Oklahoma Press, 1977).
6. See Gilbert Harman, "Human Flourishing, Ethics and Liberty," Philosophy and Public Affairs 12 (Fall 1983): 319.
7. Philippa Foot, "Morality as a System of Hypothetical Imperatives," reprinted in her Virtues and Vices (Berkeley and Los Angeles: University of California, 1978), 167.
8. Mackie, 28, my emphasis.
9. See John McDowell, "Are Moral Imperatives Hypothetical?" Proceedings of the Aristotelian Society 52 (1978): 13
10. See Bernard Williams, "Internal and External Reasons," in his Moral Luck (Cambridge: Cambridge University Press, 1980).
11. Jonathan Dancy, Moral Reasons (Oxford: 1993), Appendix I, 253-257. Dancy also notes the way in which Williams's internal/external distinction comes apart from a more traditional motivational way of making that distinction.
12. Immanuel Kant, Foundation of the Metaphysics of Morals, translated by Lewis White Beck (Indianapolis: Bobbs-Merrill, 1959), 33.
13. Kant, Foundation, 34.
14. So defined, the Kantian position is really a family of positions, and not a single view, for there are a number of ways of elaborating the idea that, to be rational, a person who acts from a hypothetical imperative is motivated by the authority of that imperative. For example, one can hold that the authority of hypothetical imperatives is directly motivational, in a way analogous to the direct motivational efficacy of the authority of a (moral) categorical imperative. Alternatively, one can hold that the authority of these imperatives motivates us indirectly, for example by having an effect on our psychological structure such that a desire to do what the imperative directs is created. Kant suggests this second idea himself in the section "The Incentives of Pure Practical Reason" in Critique of Practical Reason. Indeed, there are times in this section when he seems to assume that the only way to explain how reason could be motivational is to credit it with the power to effect a desire in us to do the moral action. But note that this view still credits reason with the causal power to create a motive, even if it does not credit it with the power to directly motivate. And both positions preserve what is fundamental to the Kantian view, namely, the idea that our motivation to follow the imperative is derived from the authority of the imperative, so that we are appropriately said to be acting for the sake of the reason given us in the imperative. If one holds the former view, one might argue that while it is possible for the authority of imperatives to work indirectly, it is better if it does not; i.e., it is better if we act directly from the reasons we have for acting. In contrast, one could maintain that reason does not...