Now, when Aristotle talks of "the good for man," there is, I think, as my quotation is sufficient to show, a certain confusion in his mind between what is good for man and what is best for man. What he really holds is that any mental activity which exhibits excellence and is pleasurable is a good; and when he adds that, if there are many excellences, the good must be mental activity which exhibits the best of them, and that it must last through a sufficiently long life, he only means that this is necessary if a man is to get the best he can get, not that this is the only good he can get. And the idea which I wish to insist on is not, therefore, the idea of "the human good," but the more fundamental idea of "good "; the idea, with regard to which he holds that the working of our minds in some excellent fashion is the only good thing that any of us can possess; and the idea of which "better" is the comparative, when he says that mental activity which exhibits some sorts of excellence is better than mental activity which exhibits others, though both are good, and that excellent mental activity continued over a longer time is better than the same continued for a shorter. This idea of what is "good," in the sense in which Aristotle uses it in these cases, is an idea which we all of us constantly use, and which is certainly an idea which it is the business of Moral Philosophy to discuss, though it is not a moral idea. The main difficulty with regard to it is to distinguish it clearly from other senses in which we use the same word. For, when we say that a thing is "good," or one thing "better" than another, we by no means always mean that it is better in this sense. Often, when we call a thing good we are not attributing to it any characteristic which it would possess if it existed quite alone, and if nothing further were to come of it; but are merely saying of it that it is a sort of thing from which other good things do in fact come, or which is such that, when accompanied by other things, the whole thus formed is "good" in Aristotle's sense, although, by itself, it is not. Thus a man may be "good," and his character may be "good," and yet neither are "good" in this fundamental sense, in which goodness is a characteristic which a thing would possess, if it existed quite alone. For, as Aristotle says, a good man may exist, and may have a good character, even when he is fast asleep; and yet if there were nothing in the Universe but good men, with good characters, all fast asleep, there would be nothing in it which was "good" in the fundamental sense with which we are concerned. Thus "moral goodness," in the sense of good character, as distinguished from the actual working of a good character in various forms of mental activity, is certainly not "good" in the sense in which good means "good for its own sake." And even with regard to the actual exercise of certain forms of moral excellence, it seems to me that in estimating the value of such exercise relatively to other things, we are apt to take into account, not merely its intrinsic value—the sort of value which it would possess, if it existed quite alone—but also its effects: we rate it higher than we should do if we were considering only its intrinsic value, because we take into account the other good things which we know are apt to flow from it. Certain things which have intrinsic value are distinguished from others, by the fact that more good consequences are apt to flow from them; and where this is the case, we are apt, I think, quite unjustly, to think that their intrinsic value must be higher too. One thing, I think, is clear about intrinsic value—goodness in Aristotle's sense—namely that it is only actual occurrences, actual states of things over a certain period of time—not such things as men, or characters, or material things, that can have any intrinsic value at all. But even this is not sufficient to distinguish intrinsic value clearly from other sorts of goodness: since even in the case of actual occurrences, we often call them good or bad for the sake of their effects or their promise of effects. Thus we all hope that the state of things in England, as a whole, will really be better some day than it has been in the past—that there will be progress and improvement: we hope, for instance, that, if we consider the whole of the lives lived in England during some year in the next century, it may turn out that the state of things, as a whole, during that year will be really better than it ever has been in any past year. And when we use "better" in this way—in the sense in which progress or improvement means a change to a better state of things—we are certainly thinking partly of a state of things which has a greater intrinsic value. And we certainly do not mean by improvement merely moral improvement. An improvement in moral conditions, other things being equal, may no doubt be a gain in intrinsic value; but we should certainly hold that, moral conditions being equal, there is yet room for improvement in other ways—in the diminution of misery and purely physical evils, for example. But in considering the degree of a real change for the better in intrinsic value, there is certainly danger of confusion between the degree in which the actual lives lived are really intrinsically better, and the degree in which there is improvement merely in the means for living a good life. If we want to estimate rightly what would constitute an intrinsic improvement in the state of things in our imagined year next century, and whether it would on the whole be really "good" at all, we have to consider what value it would have if it were to be the last year of life upon this planet; if the world were going to come to an end, as soon as it was over; and therefore to discount entirely all the promises it might contain of future goods. This criterion for distinguishing whether the kind of goodness which we are attributing to anything is really intrinsic value or not, the criterion which consists in considering whether it is a characteristic which the thing would possess, if it were to have absolutely no further consequences or accompaniments, seems to me to be one which it is very necessary to apply if we wish to distinguish clearly between different meanings of the word "good." And it is only the idea of what is good, where by "good" is meant a characteristic which has this mark, that I want now to consider.
The two ideas, then, with regard to which I want to raise a question, are first the moral idea of "moral obligation" or "duty," and secondly the non-moral idea of "good" in this special sense.
And the question with regard to them, which I want to raise, is this. With regard to both ideas many philosophers have thought and still think—not only think, but seem to be absolutely convinced, that when we apply them to anything—when we assert of any action that it ought not to have been done, or of any state of things that it was or would be good or better than another, then it must be the case that all that we are asserting of the thing or things in question is simply and solely that some person or set of persons actually does have, or has a tendency to have a certain sort of feeling towards the thing or things in question: that there is absolutely no more in it than this. While others seem to be convinced, no less strongly, that there is more in it than this: that when we judge that an action is a duty or is really wrong, we are not merely making a judgment to the effect that some person or set of persons, have, or tend to have a certain sort of feeling, when they witness or think of such actions, and that similarly when we judge that a certain state of things was or would be better than another, we are not merely making a judgment about the feelings which some person or set of persons would have, in witnessing or thinking of the two states of things, or in comparing them together. The question at issue between these two views is often expressed in other less clear forms. It is often expressed as the question whether the ideas of duty and of good or value, are or are not, "objective" ideas: as the problem as to the "objectivity" of duty and intrinsic value. The first set of philosophers would maintain that the notion of the "objectivity" of duty and of value is a mere chimera; while the second would maintain that these ideas really are "objective." And others express it as the question whether the ideas of duty and of good are "absolute" or purely "relative": whether there is any such thing as an absolute duty or an absolute good, or whether good and duty are purely relative to human feelings and desires. But both these ways of expressing it are, I think, apt to lead to confusion. And another even less clear way in which it is put is by asking the question: Is the assertion that such and such a thing is a duty, or has intrinsic value, ever a dictate of reason? But so far as I can gather, the question really at issue, and expressed in these obscure ways, is the one which I have tried to state. It is the question whether when we judge (whether truly or falsely) that an action is a duty or a state of things good, all that we are thinking about the action or the state of things in question, is simply and solely that we ourselves or others have or tend to have a certain feeling towards it when we contemplate or think of it. And the question seems to me to be of great interest, because, if this is all, then it is evident that all the ideas with which Moral Philosophy is concerned are merely psychological ideas; and all moral rules, and statements as to what is intrinsically valuable, merely true or false psychological statements; so that the whole of Moral Philosophy and Ethics will be merely departments of Psychology. Whereas, if the contrary is the case, then these two ideas of moral obligation and intrinsic value, will be no more purely psychological ideas than are the ideas of shape or size or number; and Moral Philosophy will be concerned with characteristics of actions and feelings and states of affairs, which these actions and feelings and states of affairs would or might have possessed, even if human psychology had been quite different from what it is.
Which, then, of these two views is the true one? Are these two ideas merely psychological ideas in the sense which I have tried to explain, or are they not?
As I have said, I feel some doubts myself whether they are or not: it does not seem to me to be a matter to dogmatize upon. But I am strongly inclined to think that they are not merely psychological; that Moral Philosophy and Ethics are not mere departments of Psychology. In favour of the view that the two ideas in question are merely psychological, there is, so far as I am aware, nothing whatever to be said, except that so many philosophers have been absolutely convinced that they are. None of them seem to me to have succeeded in bringing forward a single argument in favour of their view. And against the view that they are, there seem to me to be some quite definite arguments, though I am not satisfied that any of these arguments are absolutely conclusive. I will try to state briefly and clearly what seem to me the main arguments against the view that these are merely psychological ideas; although, in doing so, I am faced with a certain difficulty. For though, as I have said, many philosophers are absolutely convinced, that "duty" and "good" do merely stand for psychological ideas, they are by no means agreed what the psychological ideas are for which they stand. Different philosophers have hit on very different ideas as being the ideas for which they stand; and this very fact that, if they are psychological ideas at all, it is so difficult to agree as to what ideas they are, seems to me in itself to be an argument against the view that they are so.
Let me take each of the two ideas separately, and try to exhibit the sort of objection there seems to be to the view that it is merely a psychological idea.
Take first the idea of moral obligation. What purely psychological assertion can I be making about an action, when I assert that it was "wrong," that it ought not to have been done?