Abstract

It can sound absurd to report that you have forgotten a moral truth. Described cases in which people who have lost moral beliefs exhibit the behavioural and phenomenological symptoms of forgetting can seem similarly absurd. I examine these phenomena, and evaluate a range of hypotheses that might be offered to explain them. These include the following proposals: that it is hard to forget moral truths because they are believed on the basis of intuition; that moral forgetting seems puzzling for the same reason that forgetting what you approve or disapprove of seems puzzling; and that moral truths matter too much to us to be easily forgotten. I conclude that the best explanation for the phenomena is a non-cognitivist one: moral forgetting seems puzzling because moral judgements are attitudes of a sort that cannot be lost through forgetting.