Just as we can be more or less certain that there is extraterrestrial life or that Goldbach’s conjecture is correct, we can be more or less certain about normative matters, such as whether euthanasia is permissible or whether utilitarianism is true. However, accommodating the phenomenon of degrees of normative certitude is a difficult challenge for non-cognitivist and expressivist views, according to which normative judgements are desire-like attitudes rather than beliefs (Smith, in: Evaluation, Uncertainty, and Motivation. Ethical Theory and Moral Practice 5: 305–320, 2002). Several attempts have been made on behalf of non-cognitivism and expressivism to meet the challenge (Lenman in: Non-cognitivism and the dimensions of evaluative judgme...