Principia Ethica

by G. E. Moore

There, that is enough. That is my first point. Mill has made as naïve and artless a use of the naturalistic fallacy as anybody could desire. ‘Good,’ he tells us, means ‘desirable,’ and you can only find out what is desirable by seeking to find out what is actually desired. This is, of course, only one step towards the proof of Hedonism; for it may be, as Mill goes on to say, that other things beside pleasure are desired. Whether or not pleasure is the only thing desired is, as Mill himself admits (p. 58), a psychological question, to which we shall presently proceed. The important step for Ethics is this one just taken, the step which pretends to prove that ‘good’ means ‘desired.’ Well, the fallacy in this step is so obvious, that it is quite wonderful how Mill failed to see it. The fact is that ‘desirable’ does not mean ‘able to be desired’ as ‘visible’ means ‘able to be seen.’ The desirable means simply what ought to be desired or deserves to be desired; just as the detestable means not what can be but what ought to be detested and the damnable what deserves to be damned. Mill has, then, smuggled in, under cover of the word ‘desirable,’ the very notion about which he ought to be quite clear. ‘Desirable’ does indeed mean ‘what it is good to desire’; but when this is understood, it is no longer plausible to say that our only test of that, is what is actually desired. Is it merely a tautology when the Prayer Book talks of good desires? Are not bad desires also possible? Nay, we find Mill himself talking of a ‘better and nobler object of desire’ (p. 10), as if, after all, what is desired were not ipso facto good, and good in proportion to the amount it is desired. Moreover, if the desired is ipso facto the good; then the good is ipso facto the motive of our actions, and there can be no question of finding motives for doing it, as Mill is at such pains to do. If Mill’s explanation of ‘desirable’ be true, then his statement (p. 26) that the rule of action may be confounded with the motive of it is untrue: for the motive of action will then be according to him ipso facto its rule; there can be no distinction between the two, and therefore no confusion, and thus he has contradicted himself flatly. These are specimens of the contradictions, which, as I have tried to shew, must always follow from the use of the naturalistic fallacy; and I hope I need now say no more about the matter.

41. Well, then, the first step by which Mill has attempted to establish his Hedonism is simply fallacious. He has attempted to establish the identity of the good with the desired, by confusing the proper sense of ‘desirable,’ in which it denotes that which it is good to desire, with the sense which it would bear, if it were analogous to such words as ‘visible.’ If ‘desirable’ is to be identical with ‘good,’ then it must bear one sense; and if it is to be identical with ‘desired,’ then it must bear quite another sense. And yet to Mill’s contention that the desired is necessarily good, it is quite essential that these two senses of ‘desirable’ should be the same. If he holds they are the same, then he has contradicted himself elsewhere; if he holds they are not the same, then the first step in his proof of Hedonism is absolutely worthless.

But now we must deal with the second step. Having proved, as he thinks, that the good means the desired, Mill recognises that, if he is further to maintain that pleasure alone is good, he must prove that pleasure alone is really desired. This doctrine that ‘pleasure alone is the object of all our desires’ is the doctrine which Prof. Sidgwick has called Psychological Hedonism: and it is a doctrine which most eminent psychologists are now agreed in rejecting. But it is a necessary step in the proof of any such Naturalistic Hedonism as Mill’s; and it is so commonly held, by people not expert either in psychology or in philosophy, that I wish to treat it at some length. It will be seen that Mill does not hold it in this bare form. He admits that other things than pleasure are desired; and this admission is at once a contradiction of his Hedonism. One of the shifts by which he seeks to evade this contradiction we shall afterwards consider. But some may think that no such shifts are needed: they may say of Mill, what Callicles says of Polus in the Gorgias[11], that he has made this fatal admission through a most unworthy fear of appearing paradoxical; that they, on the other hand, will have the courage of their convictions, and will not be ashamed to go to any lengths of paradox, in defence of what they hold to be the truth.

42. Well, then, we are supposing it held that pleasure is the object of all desire, that it is the universal end of all human activity. Now I suppose it will not be denied that people are commonly said to desire other things: for instance, we usually talk of desiring food and drink, of desiring money, approbation, fame. The question, then, must be of what is meant by desire, and by the object of desire. There is obviously asserted some sort of necessary or universal relation between something which is called desire, and another thing which is called pleasure. The question is of what sort this relation is; whether in conjunction with the naturalistic fallacy above mentioned, it will justify Hedonism. Now I am not prepared to deny that there is some universal relation between pleasure and desire; but I hope to shew, that, if there is, it is of such sort as will rather make against than for Hedonism. It is urged that pleasure is always the object of desire, and I am ready to admit that pleasure is always, in part at least, the cause of desire. But this distinction is very important. Both views might be expressed in the same language; both might be said to hold that whenever we desire, we always desire because of some pleasure: if I asked my supposed Hedonist, ‘Why do you desire that?’ he might answer, quite consistently with his contention, ‘Because there is pleasure there,’ and if he asked me the same question, I might answer, equally consistently with my contention, ‘Because there is pleasure here.’ Only our two answers would not mean the same thing. It is this use of the same language to denote quite different facts, which I believe to be the chief cause why Psychological Hedonism is so often held, just as it was also the cause of Mill’s naturalistic fallacy.

Let us try to analyse the psychological state which is called ‘desire.’ That name is usually confined to a state of mind in which the idea of some object or event, not yet existing, is present to us. Suppose, for instance, I am desiring a glass of port wine. I have the idea of drinking such a glass before my mind, although I am not yet drinking it. Well, how does pleasure enter in to this relation? My theory is that it enters in, in this way. The idea of the drinking causes a feeling of pleasure in my mind, which helps to produce that state of incipient activity, which is called ‘desire.’ It is, therefore, because of a pleasure, which I already have—the pleasure excited by a mere idea—that I desire the wine, which I have not. And I am ready to admit that a pleasure of this kind, an actual pleasure, is always among the causes of every desire, and not only of every desire, but of every mental activity, whether conscious or sub-conscious. I am ready to admit this, I say: I cannot vouch that it is the true psychological doctrine; but, at all events, it is not primâ facie quite absurd. And now, what is the other doctrine, the doctrine which I am supposing held, and which is at all events essential to Mill’s argument? It is this. That when I desire the wine, it is not the wine which I desire but the pleasure which I expect to get from it. In other words, the doctrine is that the idea of a pleasure not actual is always necessary to cause desire; whereas my doctrine was that the actual pleasure caused by the idea of something else was always necessary to cause desire. It is these two different theories which I suppose the Psychological Hedonists to confuse: the confusion is, as Mr Bradley puts it[12], between ‘a pleasant thought’ and ‘the thought of a pleasure.’ It is in fact only where the latter, the ‘thought of a pleasure,’ is present, that pleasure can be said to be the object of desire, or the motive to action. On the other hand, when only a pleasant thought is present, as, I admit, may always be the case, then it is the object of the thought—that which we are thinking about—which is the object of desire and the motive to action; and the pleasure, which that thought excites, may, indeed, cause our desire or move us to action, but it is not our end or object nor our motive.

Well, I hope this distinction is sufficiently clear. Now let us see how it bears upon Ethical Hedonism. I assume it to be perfectly obvious that the idea of the object of desire is not always and only the idea of a pleasure. In the first place, plainly, we are not always conscious of expecting pleasure, when we desire a thing. We may be only conscious of the thing which we desire, and may be impelled to make for it at once, without any calculation as to whether it will bring us pleasure or pain. And, in the second place, even when we do expect pleasure, it can certainly be very rarely pleasure only which we desire. For instance, granted that, when I desire my glass of port wine, I have also an idea of the pleasure I expect from it, plainly that pleasure cannot be the only object of my desire; the port wine must be included in my object, else I might be led by my desire to take wormwood instead of wine. If the desire were directed solely towards the pleasure, it could not lead me to take the wine; if it is to take a definite direction, it is absolutely necessary that the idea of the object, from which the pleasure is expected, should also be present and should control my activity. The theory then that what is desired is always and only pleasure must break down: it is impossible to prove that pleasure alone is good, by that line of argument. But, if we substitute for this theory, that other, possibly true, theory, that pleasure is always the cause of desire, then all the plausibility of our ethical doctrine that pleasure alone is good straightway disappears. For in this case, pleasure is not what I desire, it is not what I want: it is something which I already have, before I can want anything. And can any one feel inclined to maintain, that that which I already have, while I am still desiring something else, is always and alone the good?

43. But now let us return to consider another of Mill’s arguments for his position that ‘happiness is the sole end of human action.’ Mill admits, as I have said, that pleasure is not the only thing we actually desire. ‘The desire of virtue,’ he says, ‘is not as universal, but it is as authentic a fact, as the desire of happiness[13].’ And again, ‘Money is, in many cases, desired in and for itself[14].’ These admissions are, of course, in naked and glaring contradiction with his argument that pleasure is the only thing desirable, because it is the only thing desired. How then does Mill even attempt to avoid this contradiction? His chief argument seems to be that ‘virtue,’ ‘money’ and other such objects, when they are thus desired in and for themselves, are desired only as ‘a part of happiness[15].’ Now what does this mean? Happiness, as we saw, has been defined by Mill, as ‘pleasure and the absence of pain.’ Does Mill mean to say that ‘money,’ these actual coins, which he admits to be desired in and for themselves, are a part either of pleasure or of the absence of pain? Will he maintain that those coins themselves are in my mind, and actually a part of my pleasant feelings? If this is to be said, all words are useless: nothing can possibly be distinguished from anything else; if these two things are not distinct, what on earth is? We shall hear next that this table is really and truly the same thing as this room; that a cab-horse is in fact indistinguishable from St Paul’s Cathedral; that this book of Mill’s which I hold in my hand, because it was his pleasure to produce it, is now and at this moment a part of the happiness which he felt many years ago and which has so long ceased to be. Pray consider a moment what this contemptible nonsense really means. ‘Money,’ says Mill, ‘is only desirable as a means to happiness.’ Perhaps so; but what then? ‘Why,’ says Mill, ‘money is undoubtedly desired for its own sake.’ ‘Yes, go on,’ say we. ‘Well,’ says Mill, ‘if money is desired for its own sake, it must be desirable as an end-in-itself: I have said so myself.’ ‘Oh,’ say we, ‘but you also said just now that it was only desirable as a means.’ ‘I own I did,’ says Mill, ‘but I will try to patch up matters, by saying that what is only a means to an end, is the same thing as a part of that end. I daresay the public won’t notice.’ And the public haven’t noticed. Yet this is certainly what Mill has done. He has broken down the distinction between means and ends, upon the precise observance of which his Hedonism rests. And he has been compelled to do this, because he has failed to distinguish ‘end’ in the sense of what is desirable, from ‘end’ in the sense of what is desired: a distinction which, nevertheless, both the present argument and his whole book presupposes. This is a consequence of the naturalistic fallacy.

44. Mill, then, has nothing better to say for himself than this. His two fundamental propositions are, in his own words, ‘that to think of an object as desirable (unless for the sake of its consequences), and to think of it as pleasant, are one and the same thing; and that to desire anything except in proportion as the idea of it is pleasant, is a physical and metaphysical impossibility[16].’ Both of these statements are, we have seen, merely supported by fallacies. The first seems to rest on the naturalistic fallacy; the second rests partly on this, partly on the fallacy of confusing ends and means, and partly on the fallacy of confusing a pleasant thought with the thought of a pleasure. His very language shews this. For that the idea of a thing is pleasant, in his second clause, is obviously meant to be the same fact which he denotes by ‘thinking of it as pleasant,’ in his first.

Accordingly, Mill’s arguments for the proposition that pleasure is the sole good, and our refutation of those arguments, may be summed up as follows:

First of all, he takes ‘the desirable,’ which he uses as a synonym for ‘the good,’ to mean what can be desired. The test, again, of what can be desired, is, according to him, what actually is desired: if, therefore, he says, we can find some one thing which is always and alone desired, that thing will necessarily be the only thing that is desirable, the only thing that is good as an end. In this argument the naturalistic fallacy is plainly involved. That fallacy, I explained, consists in the contention that good means nothing but some simple or complex notion, that can be defined in terms of natural qualities. In Mill’s case, good is thus supposed to mean simply what is desired; and what is desired is something which can thus be defined in natural terms. Mill tells us that we ought to desire something (an ethical proposition), because we actually do desire it; but if his contention that ‘I ought to desire’ means nothing but ‘I do desire’ were true, then he is only entitled to say, ‘We do desire so and so, because we do desire it’; and that is not an ethical proposition at all; it is a mere tautology. The whole object of Mill’s book is to help us to discover what we ought to do; but, in fact, by attempting to define the meaning of this ‘ought,’ he has completely debarred himself from ever fulfilling that object: he has confined himself to telling us what we do do.