Justice_ What's the Right Thing to Do_ - Michael Sandel [52]
“To get a job in investment banking.”
“But why get a job in investment banking?”
“To become a hedge fund manager someday.”
“But why be a hedge fund manager?”
“To make a lot of money.”
“But why make a lot of money?”
“To eat lobster often, which I like. I am, after all, a sentient creature. That’s why I’m up late thinking about runaway trolleys!”
This is an example of what Kant would call heteronomous determination—doing something for the sake of something else, for the sake of something else, and so on. When we act heteronomously, we act for the sake of ends given outside us. We are instruments, not authors, of the purposes we pursue.
Kant’s notion of autonomy stands in stark contrast to this. When we act autonomously, according to a law we give ourselves, we do something for its own sake, as an end in itself. We cease to be instruments of purposes given outside us. This capacity to act autonomously is what gives human life its special dignity. It marks out the difference between persons and things.
For Kant, respecting human dignity means treating persons as ends in themselves. This is why it is wrong to use people for the sake of the general welfare, as utilitarianism does. Pushing the heavy man onto the track to block the trolley uses him as a means, and so fails to respect him as an end in himself. An enlightened utilitarian (such as Mill) may refuse to push the man, out of concern for secondary effects that would diminish utility in the long run. (People would soon be afraid to stand on bridges, etc.) But Kant would maintain that this is the wrong reason to desist from pushing. It still treats the would-be victim as an instrument, an object, a mere means to the happiness of others. It lets him live, not for his own sake, but so that other people can cross bridges without a second thought.
This raises the question of what gives an action moral worth. It takes us from Kant’s specially demanding idea of freedom to his equally demanding notion of morality.
What’s Moral? Look for the Motive
According to Kant, the moral worth of an action consists not in the consequences that flow from it, but in the intention from which the act is done. What matters is the motive, and the motive must be of a certain kind. What matters is doing the right thing because it’s right, not for some ulterior motive.
“A good will is not good because of what it effects or accomplishes,” Kant writes. It is good in itself, whether or not it prevails. “Even if… this will is entirely lacking in power to carry out its intentions; if by its utmost effort it still accomplishes nothing… even then it would still shine like a jewel for its own sake as something which has its full value in itself.”4
For any action to be morally good, “it is not enough that it should conform to the moral law—it must also be done for the sake of the moral law.”5 And the motive that confers moral worth on an action is the motive of duty, by which Kant means doing the right thing for the right reason.6
In saying that only the motive of duty confers moral worth on an action, Kant is not yet saying what particular duties we have. He is not yet telling us what the supreme principle of morality commands. He’s simply observing that, when we assess the moral worth of an action, we assess the motive from which it’s done, not the consequences it produces.6
If we act out of some motive other than duty, such as self-interest, for example, our action lacks moral worth. This is true, Kant maintains, not only for self-interest but for any and all attempts to satisfy our wants, desires, preferences, and appetites. Kant contrasts motives such as these—he calls them “motives of inclination”—with the motive of duty. And he insists that only actions done out of the motive of duty have moral worth.
The calculating shopkeeper and the Better Business Bureau
Kant offers several examples that bring out the difference between duty and inclination. The first involves a prudent shopkeeper. An inexperienced customer, say, a child, goes into a grocery store to buy a loaf of bread. The