Some people find ethical subjectivism an attractive philosophical position because they think ethics and science are fundamentally different. For them, it seems reasonable to talk about scientific facts. It strikes them, however, that ethics is very different—different enough that it is a mistake to think there are any ethical facts at all. The problem for subjectivism is to make precise the gut feeling that there is a difference here: can it be stated in such a way that a convincing argument in favor of ethical subjectivism emerges?