But among these diversities there is agreement about one fundamental. There must be a separate non-natural faculty of moral knowledge because the things to be known, the matters of right and wrong, good and evil, obligation and responsibility, form a separate domain, separate that is from that of ordinary action in its usual human and social significance. The latter activities may be prudential, political, scientific, economic. But, from the standpoint of these theories, they have no moral meaning until they are brought under the purview of this separate unique department of our nature. It thus turns out that the so-called intuitional theories of moral knowledge concentrate in themselves all the ideas which are subject to criticism in these pages: Namely, the assertion that morality is distinct in origin, working and destiny from the natural structure and career of human nature. This fact is the excuse, if excuse be desired, for a seemingly technical excursion that links intellectual activity with the conjoint operation of habit and impulse. III So far the discussion has ignored the fact that there is an influential school of moralists (best represented in contemporary thought by the utilitarians) which also insists upon the natural, empirical character of moral judgments and beliefs. But unfortunately this school has followed a false psychology; and has tended, by calling out a reaction, actually to strengthen the hands of those who persist in assigning to morals a separate domain of action and in demanding a separate agent of moral knowledge. The essentials of this false psychology consist in two traits. The first, that knowledge originates from sensations (instead of from habits and impulses); and the second, that judgment about good and evil in action consists in calculation of agreeable and disagreeable consequences, of profit and loss. It is not surprising that this view seems to many to degrade morals, as well as to be false to facts. If the logical outcome of an empirical view of moral knowledge is that all morality is concerned with calculating what is expedient, politic, prudent, measured by consequences in the ways of pleasurable and painful sensations, then, say moralists of the orthodox school, we will have naught to do with such a sordid view: It is a reduction to the absurd of its premisses. We will have a separate department for morals and a separate organ of moral knowledge.