  It is standard, at least in cultures informed by the Christian tradition, to think of the moral person as the person of principle. This person is the person who has learnt, or developed for herself, a sufficient range of sound moral principles (of either type), and who has sufficient skill at applying these principles to cases as they crop up. There is no need to underestimate the sort of skill that would be required for this; the matter is certainly far from mechanical. One needs judgement both to discern whether a principle applies at all and, if it does, what exactly it requires of one. Nonetheless, however difficult it may be, moral judgement is conceived here as the application of principles to cases.