 In addition to rejecting moral constructivist accounts of justice, Reid rejects what we today would call response-dependent accounts of moral facts. Roughly put, response-dependent views, which Reid attributes to sentimentalists such as Hutcheson and Hume, maintain that moral reality is determined by the sorts of affective reactions we have to the world. It is because certain actions and events elicit certain types of affective states in us that they have properties such as being wrong or being obligatory. Drawing upon what rationalists such as Balguy and Price had argued, Reid asks us to consider fundamental moral principles, such as the claim that, in ordinary conditions, an agent ought to honor his promise. Claims such as this, Reid says, are necessarily true. But if the response-dependent view were correct, it is difficult to see how that could be so. After all, we can imagine being constituted in such a way that we failed to disapprove of those who do not honor their promises. If the response-dependent view were true, then in those counterfactual circumstances honoring one’s promises would not be obligatory; failing to honor them, accordingly, would not be wrong. But that is false, for basic moral principles do not exhibit this sort of contingency. Even in those counterfactual conditions it would be wrong not to honor one’s word. If so, sentimentalists views, Reid concludes, are false (see EIP VI.vi: 494–95).