In performing this process it is important to note and distinguish two different implications with which the word “ought” is used; in the narrowest ethical sense what we judge ‘ought to be’ done, is always thought capable of being brought about by the volition of any individual to whom the judgment applies. I cannot conceive that I ‘ought’ to do anything which at the same time I judge that I cannot do. In a wider sense, however,--which cannot conveniently be discarded--I sometimes judge that I ‘ought’ to know what a wiser man would know, or feel as a better man would feel, in my place, though I may know that I could not directly produce in myself such knowledge or feeling by any effort of will. In this case the word merely implies an ideal or pattern which I ‘ought’--in the stricter sense--to seek to imitate as far as possible. And this wider sense seems to be that in which the word is normally used in the precepts of Art generally, and in political judgments: when I judge that the laws and constitution of my country ‘ought to be’ other than they are, I do not of course imply that my own or any other individual’s single volition can directly bring about the change.[33] In either case, however, I imply that what ought to be is a possible object of knowledge: _i.e._ that what I judge ought to be must, unless I am in error, be similarly judged by all rational beings who judge truly of the matter.
In referring such judgments to the ‘Reason,’ I do not mean here to prejudge the question whether valid moral judgments are normally attained by a process of reasoning from universal principles or axioms, or by direct intuition of the particular duties of individuals. It is not uncommonly held that the moral faculty deals primarily with individual cases as they arise, applying directly to each case the general notion of duty, and deciding intuitively what ought to be done by this person in these particular circumstances. And I admit that on this view the apprehension of moral truth is more analogous to Sense-perception than to Rational Intuition (as commonly understood):[34] and hence the term Moral Sense might seem more appropriate. But the term Sense suggests a capacity for feelings which may vary from _A_ to _B_ without either being in error, rather than a faculty of cognition:[35] and it appears to me fundamentally important to avoid this suggestion. I have therefore thought it better to use the term Reason with the explanation above given, to denote the faculty of moral cognition:[36] adding, as a further justification of this use, that even when a moral judgment relates primarily to some particular action we commonly regard it as applicable to any other action belonging to a certain definable class: so that the moral truth apprehended is implicitly conceived to be intrinsically universal, though particular in our first apprehension of it.