Abstract
Norbert Hoerster has tried to show on the basis of what I call special and general interests that it is rational to endorse moral judgements. I argue that Hoerster’s attempt to vindicate the rationality of moral judgements fails. By appealing to special interests Hoerster can only establish the rationality of endorsing judgements that – by Hoerster’s own standards – are not moral judgements because they do not pass the test of generalization. While the appeal to general interests, on the other hand, indeed establishes the rationality of endorsing judgements that pass the test of generalization, it does so only for some but not all people; for this reason, the vindicated judgements do not qualify as moral judgements either.