Principia Ethica · G. E. Moore
THE SUBJECT-MATTER OF ETHICS.
Ethics is undoubtedly concerned with the question what good conduct is; but, being concerned with this, it obviously does not start at the beginning, unless it is prepared to tell us what is good as well as what is conduct. For ‘good conduct’ is a complex notion: all conduct is not good; for some is certainly bad and some may be indifferent. And on the other hand, other things, beside conduct, may be good; and if they are so, then, ‘good’ denotes some property, that is common to them and conduct; and if we examine good conduct alone of all good things, then we shall be in danger of mistaking for this property, some property which is not shared by those other things: and thus we shall have made a mistake about Ethics even in this limited sense; for we shall not know what good conduct really is. This is a mistake which many writers have actually made, from limiting their enquiry to conduct. And hence I shall try to avoid it by considering first what is good in general; hoping, that if we can arrive at any certainty about this, it will be much easier to settle the question of good conduct: for we all know pretty well what ‘conduct’ is. This, then, is our first question: What is good? and What is bad? and to the discussion of this question (of these questions) I give the name of Ethics, since that science must, at all events, include it.
It is not particular in the sense just noticed, the sense in which this book is a particular book, and A’s friend’s advice particular advice. Casuistry may indeed be _more_ particular and Ethics _more_ general; but that means that they differ only in degree and not in kind. And this is universally true of ‘particular’ and ‘general,’ when used in this common, but inaccurate, sense. So far as Ethics allows itself to give lists of virtues or even to name constituents of the Ideal, it is indistinguishable from Casuistry. Both alike deal with what is general, in the sense in which physics and chemistry deal with what is general. Just as chemistry aims at discovering what are the properties of oxygen, _wherever it occurs_, and not only of this or that particular specimen of oxygen; so Casuistry aims at discovering what actions are good, _whenever they occur_. In this respect Ethics and Casuistry alike are to be classed with such sciences as physics, chemistry and physiology, in their absolute distinction from those of which history and geography are instances. And it is to be noted that, owing to their detailed nature, casuistical investigations are actually nearer to physics and to chemistry than are the investigations usually assigned to Ethics.
For just as physics cannot rest content with the discovery that light is propagated by waves of ether, but must go on to discover the particular nature of the ether-waves corresponding to each several colour; so Casuistry, not content with the general law that charity is a virtue, must attempt to discover the relative merits of every different form of charity. Casuistry forms, therefore, part of the ideal of ethical science: Ethics cannot be complete without it. The defects of Casuistry are not defects of principle; no objection can be taken to its aim and object. It has failed only because it is far too difficult a subject to be treated adequately in our present state of knowledge. The casuist has been unable to distinguish, in the cases which he treats, those elements upon which their value depends. Hence he often thinks two cases to be alike in respect of value, when in reality they are alike only in some other respect. It is to mistakes of this kind that the pernicious influence of such investigations has been due. For Casuistry is the goal of ethical investigation. It cannot be safely attempted at the beginning of our studies, but only at the end. =5.= But our question ‘What is good?’ may have still another meaning. We may, in the third place, mean to ask, not what thing or things are good, but how ‘good’ is to be defined. This is an enquiry which belongs only to Ethics, not to Casuistry; and this is the enquiry which will occupy us first.
It is an enquiry to which most special attention should be directed; since this question, how ‘good’ is to be defined, is the most fundamental question in all Ethics. That which is meant by ‘good’ is, in fact, except its converse ‘bad,’ the _only_ simple object of thought which is peculiar to Ethics. Its definition is, therefore, the most essential point in the definition of Ethics; and moreover a mistake with regard to it entails a far larger number of erroneous ethical judgments than any other. Unless this first question be fully understood, and its true answer clearly recognised, the rest of Ethics is as good as useless from the point of view of systematic knowledge. True ethical judgments, of the two kinds last dealt with, may indeed be made by those who do not know the answer to this question as well as by those who do; and it goes without saying that the two classes of people may lead equally good lives. But it is extremely unlikely that the _most general_ ethical judgments will be equally valid, in the absence of a true answer to this question: I shall presently try to shew that the gravest errors have been largely due to beliefs in a false answer. And, in any case, it is impossible that, till the answer to this question be known, any one should know _what is the evidence_ for any ethical judgment whatsoever. But the main object of Ethics, as a systematic science, is to give correct _reasons_ for thinking that this or that is good; and, unless this question be answered, such reasons cannot be given. Even, therefore, apart from the fact that a false answer leads to false conclusions, the present enquiry is a most necessary and important part of the science of Ethics.
But, if we understand the question in this sense, my answer to it may seem a very disappointing one. If I am asked ‘What is good?’ my answer is that good is good, and that is the end of the matter. Or if I am asked ‘How is good to be defined?’ my answer is that it cannot be defined, and that is all I have to say about it. But disappointing as these answers may appear, they are of the very last importance. To readers who are familiar with philosophic terminology, I can express their importance by saying that they amount to this: That propositions about the good are all of them synthetic and never analytic; and that is plainly no trivial matter. And the same thing may be expressed more popularly, by saying that, if I am right, then nobody can foist upon us such an axiom as that ‘Pleasure is the only good’ or that ‘The good is the desired’ on the pretence that this is ‘the very meaning of the word.’
We can, for instance, make a man understand what a chimaera is, although he has never heard of one or seen one. You can tell him that it is an animal with a lioness’s head and body, with a goat’s head growing from the middle of its back, and with a snake in place of a tail. But here the object which you are describing is a complex object; it is entirely composed of parts, with which we are all perfectly familiar--a snake, a goat, a lioness; and we know, too, the manner in which those parts are to be put together, because we know what is meant by the middle of a lioness’s back, and where her tail is wont to grow. And so it is with all objects, not previously known, which we are able to define: they are all complex; all composed of parts, which may themselves, in the first instance, be capable of similar definition, but which must in the end be reducible to simplest parts, which can no longer be defined. But yellow and good, we say, are not complex: they are notions of that simple kind, out of which definitions are composed and with which the power of further defining ceases.
It may be full of pleasure, for example; it may be intelligent: and if these two adjectives are really part of its definition, then it will certainly be true, that pleasure and intelligence are good. And many people appear to think that, if we say ‘Pleasure and intelligence are good,’ or if we say ‘Only pleasure and intelligence are good,’ we are defining ‘good.’ Well, I cannot deny that propositions of this nature may sometimes be called definitions; I do not know well enough how the word is generally used to decide upon this point. I only wish it to be understood that that is not what I mean when I say there is no possible definition of good, and that I shall not mean this if I use the word again. I do most fully believe that some true proposition of the form ‘Intelligence is good and intelligence alone is good’ can be found; if none could be found, our definition of _the_ good would be impossible. As it is, I believe _the_ good to be definable; and yet I still say that good itself is indefinable.
(1) He may be trying to prove that the object of desire is not pleasure. But, if this be all, where is his Ethics? The position he is maintaining is merely a psychological one. Desire is something which occurs in our minds, and pleasure is something else which so occurs; and our would-be ethical philosopher is merely holding that the latter is not the object of the former. But what has that to do with the question in dispute? His opponent held the ethical proposition that pleasure was the good, and although he should prove a million times over the psychological proposition that pleasure is not the object of desire, he is no nearer proving his opponent to be wrong. The position is like this. One man says a triangle is a circle: another replies ‘A triangle is a straight line, and I will prove to you that I am right: _for_’ (this is the only argument) ‘a straight line is not a circle.’ ‘That is quite true,’ the other may reply; ‘but nevertheless a triangle is a circle, and you have said nothing whatever to prove the contrary. What is proved is that one of us is wrong, for we agree that a triangle cannot be both a straight line and a circle: but which is wrong, there can be no earthly means of proving, since you define triangle as straight line and I define it as circle.’--Well, that is one alternative which any naturalistic Ethics has to face; if good is _defined_ as something else, it is then impossible either to prove that any other definition is wrong or even to deny such definition.
(2) The other alternative will scarcely be more welcome. It is that the discussion is after all a verbal one. When A says ‘Good means pleasant’ and B says ‘Good means desired,’ they may merely wish to assert that most people have used the word for what is pleasant and for what is desired respectively. And this is quite an interesting subject for discussion: only it is not a whit more an ethical discussion than the last was. Nor do I think that any exponent of naturalistic Ethics would be willing to allow that this was all he meant. They are all so anxious to persuade us that what they call the good is what we really ought to do. ‘Do, pray, act so, because the word “good” is generally used to denote actions of this nature’: such, on this view, would be the substance of their teaching. And in so far as they tell us how we ought to act, their teaching is truly ethical, as they mean it to be. But how perfectly absurd is the reason they would give for it! ‘You are to do this, because most people use a certain word to denote conduct such as this.’ ‘You are to say the thing which is not, because most people call it lying.’
That is an argument just as good!--My dear sirs, what we want to know from you as ethical teachers, is not how people use a word; it is not even, what kind of actions they approve, which the use of this word ‘good’ may certainly imply: what we want to know is simply what _is_ good. We may indeed agree that what most people do think good, is actually so; we shall at all events be glad to know their opinions: but when we say their opinions about what _is_ good, we do mean what we say; we do not care whether they call that thing which they mean ‘horse’ or ‘table’ or ‘chair,’ ‘gut’ or ‘bon’ or ‘ἀγαθός’; we want to know what it is that they so call. When they say ‘Pleasure is good,’ we cannot believe that they merely mean ‘Pleasure is pleasure’ and nothing more than that.
And if anybody tried to define pleasure for us as being any other natural object; if anybody were to say, for instance, that pleasure _means_ the sensation of red, and were to proceed to deduce from that that pleasure is a colour, we should be entitled to laugh at him and to distrust his future statements about pleasure. Well, that would be the same fallacy which I have called the naturalistic fallacy. That ‘pleased’ does not mean ‘having the sensation of red,’ or anything else whatever, does not prevent us from understanding what it does mean. It is enough for us to know that ‘pleased’ does mean ‘having the sensation of pleasure,’ and though pleasure is absolutely indefinable, though pleasure is pleasure and nothing else whatever, yet we feel no difficulty in saying that we are pleased. The reason is, of course, that when I say ‘I am pleased,’ I do _not_ mean that ‘I’ am the same thing as ‘having pleasure.’ And similarly no difficulty need be found in my saying that ‘pleasure is good’ and yet not meaning that ‘pleasure’ is the same thing as ‘good,’ that pleasure _means_ good, and that good _means_ pleasure.
If I were to imagine that when I said ‘I am pleased,’ I meant that I was exactly the same thing as ‘pleased,’ I should not indeed call that a naturalistic fallacy, although it would be the same fallacy as I have called naturalistic with reference to Ethics. The reason of this is obvious enough. When a man confuses two natural objects with one another, defining the one, by the other, if for instance, he confuses himself, who is one natural object, with ‘pleased’ or with ‘pleasure’ which are others, then there is no reason to call the fallacy naturalistic. But if he confuses ‘good,’ which is not in the same sense a natural object, with any natural object whatever, then there is a reason for calling that a naturalistic fallacy; its being made with regard to ‘good’ marks it as something quite specific, and this specific mistake deserves a name because it is so common. As for the reasons why good is not to be considered a natural object, they may be reserved for discussion in another place. But, for the present, it is sufficient to notice this: Even if it were a natural object, that would not alter the nature of the fallacy nor diminish its importance one whit.
All that I have said about it would remain quite equally true: only the name which I have called it would not be so appropriate as I think it is. And I do not care about the name: what I do care about is the fallacy. It does not matter what we call it, provided we recognise it when we meet with it. It is to be met with in almost every book on Ethics; and yet it is not recognised: and that is why it is necessary to multiply illustrations of it, and convenient to give it a name. It is a very simple fallacy indeed. When we say that an orange is yellow, we do not think our statement binds us to hold that ‘orange’ means nothing else than ‘yellow,’ or that nothing can be yellow but an orange. Supposing the orange is also sweet! Does that bind us to say that ‘sweet’ is exactly the same thing as ‘yellow,’ that ‘sweet’ must be defined as ‘yellow’? And supposing it be recognised that ‘yellow’ just means ‘yellow’ and nothing else whatever, does that make it any more difficult to hold that oranges are yellow?
Most certainly it does not: on the contrary, it would be absolutely meaningless to say that oranges were yellow, unless yellow did in the end mean just ‘yellow’ and nothing else whatever--unless it was absolutely indefinable. We should not get any very clear notion about things, which are yellow--we should not get very far with our science, if we were bound to hold that everything which was yellow, _meant_ exactly the same thing as yellow. We should find we had to hold that an orange was exactly the same thing as a stool, a piece of paper, a lemon, anything you like. We could prove any number of absurdities; but should we be the nearer to the truth? Why, then, should it be different with ‘good’? Why, if good is good and indefinable, should I be held to deny that pleasure is good? Is there any difficulty in holding both to be true at once? On the contrary, there is no meaning in saying that pleasure is good, unless good is something different from pleasure. It is absolutely useless, so far as Ethics is concerned, to prove, as Mr Spencer tries to do, that increase of pleasure coincides with increase of life, unless good _means_ something different from either life or pleasure. He might just as well try to prove that an orange is yellow by shewing that it always is wrapped up in paper.
(1) The hypothesis that disagreement about the meaning of good is disagreement with regard to the correct analysis of a given whole, may be most plainly seen to be incorrect by consideration of the fact that, whatever definition be offered, it may be always asked, with significance, of the complex so defined, whether it is itself good. To take, for instance, one of the more plausible, because one of the more complicated, of such proposed definitions, it may easily be thought, at first sight, that to be good may mean to be that which we desire to desire. Thus if we apply this definition to a particular instance and say ‘When we think that A is good, we are thinking that A is one of the things which we desire to desire,’ our proposition may seem quite plausible. But, if we carry the investigation further, and ask ourselves ‘Is it good to desire to desire A?’ it is apparent, on a little reflection, that this question is itself as intelligible, as the original question ‘Is A good?’--that we are, in fact, now asking for exactly the same information about the desire to desire A, for which we formerly asked with regard to A itself.
But it is also apparent that the meaning of this second question cannot be correctly analysed into ‘Is the desire to desire A one of the things which we desire to desire?’: we have not before our minds anything so complicated as the question ‘Do we desire to desire to desire to desire A?’ Moreover any one can easily convince himself by inspection that the predicate of this proposition--‘good’--is positively different from the notion of ‘desiring to desire’ which enters into its subject: ‘That we should desire to desire A is good’ is _not_ merely equivalent to ‘That A should be good is good.’ It may indeed be true that what we desire to desire is always also good; perhaps, even the converse may be true: but it is very doubtful whether this is the case, and the mere fact that we understand very well what is meant by doubting it, shews clearly that we have two different notions before our minds.
(2) And the same consideration is sufficient to dismiss the hypothesis that ‘good’ has no meaning whatsoever. It is very natural to make the mistake of supposing that what is universally true is of such a nature that its negation would be self-contradictory: the importance which has been assigned to analytic propositions in the history of philosophy shews how easy such a mistake is. And thus it is very easy to conclude that what seems to be a universal ethical principle is in fact an identical proposition; that, if, for example, whatever is called ‘good’ seems to be pleasant, the proposition ‘Pleasure is the good’ does not assert a connection between two different notions, but involves only one, that of pleasure, which is easily recognised as a distinct entity. But whoever will attentively consider with himself what is actually before his mind when he asks the question ‘Is pleasure (or whatever it may be) after all good?’ can easily satisfy himself that he is not merely wondering whether pleasure is pleasant. And if he will try this experiment with each suggested definition in succession, he may become expert enough to recognise that in every case he has before his mind a unique object, with regard to the connection of which with any other object, a distinct question may be asked.
Every one does in fact understand the question ‘Is this good?’ When he thinks of it, his state of mind is different from what it would be, were he asked ‘Is this pleasant, or desired, or approved?’ It has a distinct meaning for him, even though he may not recognise in what respect it is distinct. Whenever he thinks of ‘intrinsic value,’ or ‘intrinsic worth,’ or says that a thing ‘ought to exist,’ he has before his mind the unique object--the unique property of things--which I mean by ‘good.’ Everybody is constantly aware of this notion, although he may never become aware at all that it is different from other notions of which he is also aware. But, for correct ethical reasoning, it is extremely important that he should become aware of this fact; and, as soon as the nature of the problem is clearly understood, there should be little difficulty in advancing so far in analysis. =14.= ‘Good,’ then, is indefinable; and yet, so far as I know, there is only one ethical writer, Prof. Henry Sidgwick, who has clearly recognised and stated this fact. We shall see, indeed, how far many of the most reputed ethical systems fall short of drawing the conclusions which follow from such a recognition. At present I will only quote one instance, which will serve to illustrate the meaning and importance of this principle that ‘good’ is indefinable, or, as Prof. Sidgwick says, an ‘unanalysable notion.’ It is an instance to which Prof. Sidgwick himself refers in a note on the passage, in which he argues that ‘ought’ is unanalysable[2].
But this method of escape from the charge of having committed the naturalistic fallacy has been closed by Bentham himself. For his fundamental principle is, we see, that the greatest happiness of all concerned is the _right_ and proper _end_ of human action. He applies the word ‘right,’ therefore, to the end, as such, not only to the means which are conducive to it; and, that being so, right can no longer be defined as ‘conducive to the general happiness,’ without involving the fallacy in question. For now it is obvious that the definition of right as conducive to general happiness can be used by him in support of the fundamental principle that general happiness is the right end; instead of being itself derived from that principle. If right, by definition, means conducive to general happiness, then it is obvious that general happiness is the right end. It is not necessary now first to prove or assert that general happiness is the right end, before right is defined as conducive to general happiness--a perfectly valid procedure; but on the contrary the definition of right as conducive to general happiness proves general happiness to be the right end--a perfectly invalid procedure, since in this case the statement that ‘general happiness is the right end of human action’ is not an ethical principle at all, but either, as we have seen, a proposition about the meaning of words, or else a proposition about the _nature_ of general happiness, not about its rightness or goodness.
Ideas discussed in this chapter
Text from Project Gutenberg, public domain in the United States.