 “An exclusionary reason,” in Raz’s terminology, “is a second order reason to refrain from acting for some reason” (39). A simple example is that of Ann, who is tired after a long and stressful day, and hence has reason not to act on her best assessment of the reasons bearing on a particularly important investment decision that she immediately faces (37). This notion of an exclusionary reason allowed Raz to capture many of the complexities of our moral reasoning, especially as it involves principled commitments, while conceding that, at the first order, all practical reasons might be commensurable. Raz’s early strategy for reconciling commensurability with complexity of structure was to limit the claim that reasons are comparable with regard to strength to reasons of a given order. First-order reasons compete on the basis of strength; but conflicts between first- and second-order reasons “are resolved not by the strength of the competing reasons but by a general principle of practical reasoning which determines that exclusionary reasons always prevail” (40). 