Principia Ethica

the good, we very easily arrive at the result that the good is general happiness. If, on the other hand, we once recognise that we must start our Ethics without a definition, we shall be much more apt to look about us, before we adopt any ethical principle whatever; and the more we look about us, the less likely are we to adopt a false one. It may be replied to this: Yes, but we shall look about us just as much, before we settle on our definition, and are therefore just as likely to be right. But I will try to show that this is not the case. If we start with the conviction that a definition of good can be found, we start with the conviction that good can mean nothing else than some one property of things; and our only business will then be to discover what that property is. But if we recognise that, so far as the meaning of good goes, anything whatever may be good, we start with a much more open mind. Moreover, apart from the fact that, when we think we have a definition, we cannot logically defend our ethical principles in any way whatever, we shall also be much less apt to defend them well, even if illogically. For we shall start with the conviction that good must mean so-and-so, and shall therefore be inclined either to misunderstand our opponent’s arguments or to cut them short with the reply, “This is not an open question: the very meaning of the word decides it; no one can think otherwise except through confusion.”

15. Our first conclusion as to the subject-matter of Ethics is, then, that there is a simple, indefinable, unanalysable object of thought by reference to which it must be defined. By what name we call this unique object is a matter of indifference, so long as we clearly recognise what it is and that it does differ from other objects. The words which are commonly taken as the signs of ethical judgments all do refer to it; and they are expressions of ethical judgments solely because they do so refer. But they may refer to it in two different ways, which it is very important to distinguish, if we are to have a complete definition of the range of ethical judgments. Before I proceeded to argue that there was such an indefinable notion involved in ethical notions, I stated (§ 4) that it was necessary for Ethics to enumerate all true universal judgments, asserting that such and such a thing was good, whenever it occurred. But, although all such judgments do refer to that unique notion which I have called “good,” they do not all refer to it in the same way. They may either assert that this unique property does always attach to the thing in question, or else they may assert only that the thing in question is a cause or necessary condition for the existence of other things to which this unique property does attach. The nature of these two species of universal ethical judgments is extremely different; and a great part of the difficulties, which are met with in ordinary ethical speculation, are due to the failure to distinguish them clearly. Their difference has, indeed, received expression in ordinary language by the contrast between the terms “good as means” and “good in itself,” “value as a means” and “intrinsic value.” But these terms are apt to be applied correctly only in the more obvious instances; and this seems to be due to the fact that the distinction between the conceptions which they denote has not been made a separate object of investigation. This distinction may be briefly pointed out as follows.

16. Whenever we judge that a thing is “good as a means,” we are making a judgment with regard to its causal relations: we judge both that it will have a particular kind of effect, and that that effect will be good in itself. But to find causal judgments that are universally true is notoriously a matter of extreme difficulty. The late date at which most of the physical sciences became exact, and the comparative fewness of the laws which they have succeeded in establishing even now, are sufficient proofs of this difficulty. With regard, then, to what are the most frequent objects of ethical judgments, namely actions, it is obvious that we cannot be satisfied that any of our universal causal judgments are true, even in the sense in which scientific laws are so. We cannot even discover hypothetical laws of the form “Exactly this action will always, under these conditions, produce exactly that effect.” But for a correct ethical judgment with regard to the effects of certain actions we require more than this in two respects. (1) We require to know that a given action will produce a certain effect, under whatever circumstances it occurs. But this is certainly impossible. It is certain that in different circumstances the same action may produce effects which are utterly different in all respects upon which the value of the effects depends. Hence we can never be entitled to more than a generalisation⁠—to a proposition of the form “This result generally follows this kind of action”; and even this generalisation will only be true, if the circumstances under which the action occurs are generally the same. This is in fact the case, to a great extent, within any one particular age and state of society. But, when we take other ages into account, in many most important cases the normal circumstances of a given kind of action will be so different, that the generalisation which is true for one will not be true for another. With regard then to ethical judgments which assert that a certain kind of action is good as a means to a certain kind of effect, none will be universally true; and many, though generally true at one