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432 pages, Hardcover
Published May 7, 2024
Rawls argued that, in the end, we should prefer the difference principle because it embodies an ideal of reciprocity. For Rawls, a just society is one in which we can “face one another openly,” in the sense that we can offer a justification to one another for the way society is organized, including to the least well off. Restricted utilitarianism, by contrast, appeals not to reciprocity but to an improbable degree of altruism or selflessness: it permits a situation in which we ask the poorest in society to make sacrifices so that other people who are already richer than they are can have even more. For Rawls, the importance of reciprocity in justifying the difference principle is pragmatic as well as moral. He argued that by appealing to reciprocity rather than altruism, the difference principle was grounded in a more realistic account of human psychology, and so more likely to secure the ongoing support of real-life citizens; a position that, as we shall see in the next chapter, is strongly supported by the latest research in moral psychology, and which has deep roots in human evolution.