  Another function of moral theory is to provide a decision procedure for people to follow so as to best insure they perform right actions. Indeed, some writers, such as R. M. Hare hold action guidance to be the function of the moral principles of the theory (Hare 1965). This raises the question of what considerations are relevant to the content of such principles – for example, should the principles be formulated taking into account the epistemic limitations of most human beings? The requirement that moral principles be action guiding is what Holly Smith terms the “Useability Demand”: “…an acceptable moral principle must be useable for guiding moral decisions…” (Smith 2020, 11). Smith enumerates different forms satisfaction of this demand can take, and notes that how one spells out a principle in order to meet the demand will depend upon how the moral theorist views moral success. For example, whether or not success is achieved in virtue of simply making the right decision or if, in addition to making the right decision, the agent must also have successful follow-through on that decision.