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.
Further, when I speak of the cognition or judgment that ‘X ought to be done’—in the stricter ethical sense of the term ought[37]—as a ‘dictate’ or ‘precept’ of reason to the persons to whom it relates, I imply that in rational beings as such this cognition gives an impulse or motive to action: though in human beings, of course, this is only one motive among others which are liable to conflict with it, and is not always—perhaps not usually—a predominant motive. In fact, this possible conflict of motives seems to be connoted by the term ‘dictate’ or ‘imperative,’ which describes the relation of Reason to mere inclinations or non-rational impulses by comparing it to the relation between the will of a superior and the wills of his subordinates. This conflict seems also to be implied in the terms ‘ought,’ ‘duty,’ ‘moral obligation,’ as used in ordinary moral discourse: and hence these terms cannot be applied to the actions of rational beings to whom we cannot attribute impulses conflicting with reason. We may, however, say of such beings that their actions are ‘reasonable,’ or (in an absolute sense) ‘right.’
§ 4. I am aware that some persons will be disposed to answer all the preceding argument by a simple denial that they can find in their consciousness any such unconditional or categorical imperative as I have been trying to exhibit. If this is really the final result of self-examination in any case, there is no more to be said. I, at least, do not know how to impart the notion of moral obligation to any one who is entirely devoid of it. I think, however, that many of those who give this denial only mean to deny that they have any consciousness of moral obligation to actions without reference to their consequences; and would not really deny that they recognise some universal end or ends—whether it be the general happiness, or well-being otherwise understood—as that at which it is ultimately reasonable to aim, subordinating to its attainment the gratification of any personal desires that may conflict with this aim. But in this view, as I have before said, the unconditional imperative plainly comes in as regards the end, which is—explicitly or implicitly—recognised as an end at which all men ‘ought’ to aim; and it can hardly be denied that the recognition of an end as ultimately reasonable involves the recognition of an obligation to do such acts as most conduce to the end. The obligation is not indeed “unconditional,” but it does not depend on the existence of any non-rational desires or aversions. And nothing that has been said in the preceding section is intended as an argument in favour of Intuitionism, as against Utilitarianism or any other method that treats moral rules as relative to General Good or Well-being. For instance, nothing that I have said is inconsistent with the view that Truthspeaking is only valuable as a means to the preservation of society: only if it be admitted that it is valuable on this ground I should say that it is implied that the preservation of society—or some further end to which this preservation, again, is a means—must be valuable per se, and therefore something at which a rational being, as such, ought to aim. If it be granted that we need not look beyond the preservation of society, the primary ‘dictate of reason’ in this case would be ‘that society ought to be preserved’: but reason would also dictate that truth ought to be spoken, so far as truthspeaking is recognised as the indispensable or fittest means to this end: and the notion “ought” as used in either dictate is that which I have been trying to make clear.
So again, even those who hold that moral rules are only obligatory because it is the individual’s interest to conform to them—thus regarding them as a particular species of prudential rules—do not thereby get rid of the ‘dictate of reason,’ so far as they recognise private interest or happiness as an end at which it is ultimately reasonable to aim. The conflict of Practical Reason with irrational desire remains an indubitable fact of our conscious experience, even if practical reason