In the present chapter we have again to take a great step in ethical method. My discussion hitherto has fallen under two main heads. Under the first, I tried to shew what good—the adjective good—means. This appeared to be the first point to be settled in any treatment of Ethics, that should aim at being systematic. It is necessary we should know this, should know what good means, before we can go on to consider what is good—what things or qualities are good. It is necessary we should know it for two reasons. The first reason is that good is the notion upon which all Ethics depends. We cannot hope to understand what we mean, when we say that this is good or that is good, until we understand quite clearly, not only what this is or that is (which the natural sciences and philosophy can tell us) but also what is meant by calling them good, a matter which is reserved for Ethics only. Unless we are quite clear on this point, our ethical reasoning will be always apt to be fallacious. We shall think that we are proving that a thing is good, when we are really only proving that it is something else; since unless we know what good means, unless we know what is meant by that notion in itself, as distinct from what is meant by any other notion, we shall not be able to tell when we are dealing with it and when we are dealing with something else, which is perhaps like it, but yet not the same. And the second reason why we should settle first of all this question What good means? is a reason of method. It is this, that we can never know on what evidence an ethical proposition rests, until we know the nature of the notion which makes the proposition ethical. We cannot tell what is possible, by way of proof, in favour of one judgment that This or that is good, or against another judgment That this or that is bad, until we have recognised what the nature of such propositions must always be. In fact, it follows from the meaning of good and bad, that such propositions are all of them, in Kant's phrase, synthetic: they all must rest in the end upon some proposition which must be simply accepted or rejected, which cannot be logically deduced from any other proposition. This result, which follows from our first investigation, may be otherwise expressed by saying that the fundamental principles of Ethics must be self-evident. But I am anxious that this expression should not be misunderstood. The expression self-evident means properly that the proposition so called is evident or true, by itself alone; that it is not an inference from some proposition other than itself. The expression does not mean that the proposition is true, because it is evident to you or me or all mankind, because in other words it appears to us to be true. That a proposition appears to be true can never be a valid argument that true it really is. By saying that a proposition is self-evident, we mean emphatically that its appearing so to us, is not the reason why it is true: for we mean that it has absolutely no reason. It would not be a self-evident proposition, if we could say of it: I cannot think otherwise and therefore it is true. For then its evidence or proof would not lie in itself, but in something else, namely our conviction of it. That it appears true to us may indeed be the cause of our asserting it, or the reason why we think and say that it is true: but a reason in this sense is something utterly different from a logical reason, or reason why something is true. Moreover, it is obviously not a reason of the same thing. The evidence of a proposition to us is only a reason for our holding it to be true: whereas a logical reason, or reason in the sense in which self-evident propositions have no reason, is a reason why the proposition itself must be true, not why we hold it so to be. Again that a proposition is evident to us may not only be the reason why we do think or affirm it, it may even be a reason why we ought to think it or affirm it. But a reason, in this sense too, is not a logical reason for the truth of the proposition, though it is a logical reason for the rightness of holding the proposition. In our common language, however, these three meanings of reason are constantly confused, whenever we say I have a reason for thinking that true. But it is absolutely essential, if we are to get clear notions about Ethics or, indeed, about any other, especially any philosophical, study, that we should distinguish them. When, therefore, I talk of Intuitionistic Hedonism, I must not be understood to imply that my denial that Pleasure is the only good is based on my Intuition of its falsehood. My intuition of its falsehood is indeed my reason for holding and declaring it untrue; it is indeed the only valid reason for so doing. But that is just because there is no logical reason for it; because there is no proper evidence or reason of its falsehood except itself alone. It is untrue, because it is untrue, and there is no other reason: but I declare it untrue, because its untruth is evident to me, and I hold that that is a sufficient reason for my assertion. We must not therefore look on Intuition, as if it were an alternative to reasoning. Nothing whatever can take the place of reasons for the truth of any proposition: intuition can only furnish a reason for holding any proposition to be true: this however it must do when any proposition is self-evident, when, in fact, there are no reasons which prove its truth. (§ 86 ¶ 1)

So much, then, for the first step which established that good is good and nothing else whatever, and that Naturalism was a fallacy. A second step was taken when we began to consider proposed self-evident principles of Ethics. In this second division, resting on our result that good means good, we began the discussion of propositions asserting that such and such a thing or quality or concept was good. Of such a kind was the principle of Intuitionistic or Ethical Hedonism—the principle that Pleasure alone is good. Following the method established by our first discussion, I claimed that the untruth of this proposition was self-evident. I could do nothing to prove that it was untrue; I could only point out as clearly as possible what it means, and how it contradicts other propositions which appear to be equally true. My only object in all this was, necessarily, to convince. But even if I did convince, that does not prove that we are right. It justifies us in holding that we are so; but nevertheless we may be wrong. On one thing, however, we may justly pride ourselves. It is that we have had a better chance of answering our questions rightly, than Bentham or Mill or Sidgwick or others who have contradicted us. For we have proved that these have never even asked themselves the question which they professed to answer. They have confused it with another question: small wonder, therefore, if their answer is different from ours. We must be quite sure that the same question has been put, before we trouble ourselves at the different answers that are given to it. For all we know, the whole world would agree with us, if they could once clearly understand the question upon which we want their votes. Certain it is, that in all those cases where we found a difference of opinion, we found also that the question had not been clearly understood. Though, therefore, we cannot prove that we are right, yet we have a reason to believe that everybody, unless he is mistaken as to what he thinks, will think the same as we. It is as with a sum in mathematics. If we find a gross and palpable error in the calculations, we are not surprised or troubled that the person who made this mistake has reached a different result from ours. We think he will admit that his result is wrong, if his mistake is pointed out to him. For instance if a man has to add up 5 + 7 + 9, we should not wonder that he made the result to be 34, if he started by making 5 + 7 = 25. And so in Ethics, if we find, as we did, that desirable is confused with desired, or that end is confused with means, we need not be disconcerted that those who have committed these mistakes do not agree with us. The only difference is that in Ethics, owing to the intricacy of its subject matter, it is far more difficult to persuade anyone either that he has made a mistake or that that mistake affects his result. (§ 87 ¶ 1)

In this second division of my subject—the division which is occupied with the question, What is good in itself?—I have hitherto only tried to establish one definite result, and that a negative one: namely that pleasure is not the sole good. This result, if true, refutes half, or more than half, of the ethical theories which have ever been held, and is, therefore, not without importance. It will, however, be necessary presently to deal positively with the question: What things are good and in what degrees? (§ 87 ¶ 2)

But before proceeding to this discussion I propose, first, to deal with the third kind of ethical question—the quesiton: What ought we to do? (§ 88 ¶ 1)

The answering of this question constitutes the third great division of ethical enquiry; and its nature was briefly explained in Chap. I (§§ 15—17). It introduces into Ethics, as was there pointed out, an entirely new question—the question what things are related as causes to that which is good in itself; and this question can only be answered by an entirely new method—the method of empirical investigation; by means of which causes are discovered in the other sciences. To ask what kind of actions we ought to perform, or what kind of conduct is right, is to ask what kind of effects such action and conduct will produce. Not a single question in practical Ethics can be answered except by a causal generalisation. All such questions do, indeed, also involve an ethical judgment proper—the judgment that certain effects are better, in themselves, than others. But they do assert that these better things are effects—are causally connected with the actions in question. Every judgment in practical Ethics may be reduced to the form: This is a cause of that good thing. (§ 88 ¶ 2)