Leonard Kahn

I begin this chapter by outlining Mill's thinking about why justice is a problem for utilitarians. Next, I turn to Mill's own account of justice and explain its connection with rights, perfect duties, and harms. I then examine David Lyons' answer to the question of how Mill's account is meant to answer the Weak Objection from Justice. Lyons maintains that Mill's account of justice has both a conceptual side and a substantive side. The former provides an analysis of such concepts as 'justice' and 'rights'. The latter, based on the Principle of Utility, provides an explanation of when these concepts apply. As a result, utilitarians can allow for circumstances in which actions are wrong because they are unjust, while also claiming that the standards of right and wrong (as well as justice and injustice) are determined by the Principle of Utility. However, the main thesis of this paper is that Lyons' interpretation is flawed. The distinction between the conceptual and the substantive levels of Mill's thinking does not hold up to scrutiny, and even if it did, it would not support Lyon's reading of Mill. It would instead support a debunking interpretation of justice, an interpretation recently explored by Roger Crisp. Such a debunking interpretation suggests a very different response to the Weak Objection from Justice, one that many, but not all, utilitarians will find unwelcome.

Rule consequentialism (RC) holds that the rightness and wrongness of actions is determined by an ideal moral code, i.e., the set of rules whose internalization would have the best consequences. But just how many moral codes are there supposed to be? Absolute RC holds that there is a single morally ideal code for everyone, while Relative RC holds that there are different codes for different groups or individuals. I argue that Relative RC better meets the test of reflective equilibrium than Absolute RC. In particular, I contend that Relative RC is superior because it accommodates our convictions about costless benefits. Some have charged that Relative RC threatens our convictions about the generality of moral codes and that it leads inevitably to what Brad Hooker calls “runaway relativism.” I argue that Relative RC has principled reasons for stopping this imagined slide down the slippery slope