An analysis of Hare's application of the thesis of universalizability in his moral arguments

Hare used his thesis of universalizability to generate specific normative results and a defense of utilitarianism. To accomplish the latter task, he enjoined that one consider oneself in various roles in a given situation, and that the concluding judgment must be one that is affirmable in any of the various roles. In effect this means that one must, says Hare, give equal weight to the interests of all involved parties, an axiom of utilitarianism. The paper argues that he did not succeed.