 This process, then, enables one to discern a moral principle, one that says that all acts of a specified type (that is, which are the origination of some specified sort of state of affairs), and whose agents stand in some specified relation either to others or to themselves, are such that there is a claim on those agents to act in that way, this claim being grounded in the specified nature of the act and/or the relevant relation. Knowing this principle might be of some use. But if one comes to doubt the principle, just gazing at it will not restore one’s confidence in it, no matter how searching one’s gaze. Nor will it help to try to infer the principle from something else; “the remedy lies not in any process of general thinking” (20). To recover one’s sense of its truth, one needs to put oneself into a situation of the relevant sort, or at least to imagine oneself in such a situation, if one’s imagination is powerful enough, and see whether the sense of obligation arises or not.