A difficulty of a more radical kind meets us, at the very outset of our inquiry, in the distinctively ethical notion expressed by the word "ought." Various attempts have been made to surmount or circumvent this difficulty; and some of these will come under consideration in the sequel. The very notion of conscious activity contains the idea of bringing about something which does not yet exist. It involves a purpose or end. The notion "ought," it is true, means more than this: it implies an obligation to pursue a definite end or conform to definite rules, regarded generally as coming from an authoritative source. In this clear and full sense, "oughtness" or duty is a comparatively recent notion, foreign to the classical period of Greek ethics. The force and definiteness belonging to the modern conception of it are due to the juridical aspect which the Stoic philosophy, Roman law, and Christian theology combined to impress upon morality. But even the notion of purpose or end implies a "preference" of the end sought: the state to be realised is looked upon as "better" or "more to be desired" than the existing state. We may ask for the reason of this superior desirableness; but the answer must soon fall back upon the assertion of something held to be desirable in itself. The question which we are always asking, and cannot help asking, "Why is such and such an end to be pursued by me?" or "Why ought I to follow such and such a course of conduct?" must soon lead to the assertion of an ultimate end.

the transition to which requires investigation;

This end, therefore, must not be sought for some ulterior end, nor desired as a means to satisfy any other desire. But it is still necessary to inquire into the way in which the end, held to be ultimate in a practical regard, stands related to the constitution of man and his environment. And the question to which I would draw attention, as the fundamental problem of ethics, is, What is that which men have variously called happiness, the highest good, the ethical end? or, more precisely, How can a transition be made from the notions of theoretical philosophy to the determination of that ethical end? No assumption is made, at starting, as to the nature of this end, or the manner of arriving at it. It may be a transient state of feeling, or a permanent type of character; or it may by its very nature defy exact definition,—the idea itself being perfected as its realisation is progressively approached. In any case it requires to be brought into connection with the ultimate conceptions of thought and existence.

This question of the ethical end or highest good is thus fundamental in ethical science, and upon it all other questions in ethics finally depend. But it is easy to see that it does not cover the whole field, and that the other points of view already referred to have a legitimate application. Ethics has not only to determine the end, but to apply it to practice, and so to decide as to what is right or wrong in particular actions, and virtuous or vicious in character. And, in addition to the two questions thus implied—the question as to the ethical end, and that as to the application of it to practical affairs—there is another department of inquiry which has had a place assigned to it in most ethical systems, and which has a right to be regarded as belonging to ethics. We may investigate the place, in the individual and the community respectively, both of the sentiments and ideas and of the social institutions and customs through which morality is manifested; and this inquiry covers the twofold ground of what may be called moral psychology and moral sociology.

(c) distinct from other ethical questions:

Of these three questions, the first forms the subject of inquiry in the following pages. It seems to me that a great part of the obscurity which surrounds ethical argument is due to confounding these different questions. It is true that no one of them is without bearing on the others; but it is none the less necessary, in discussing any one of them, to keep its distinctness from those others well in view. In inquiring into the foundation on which the ethical end is based, I do not intend to develop a code of rules for practical conduct or a theory of human virtue; nor shall I attempt to trace the origin and nature of moral sentiments and ideas, or of the social institutions and customs connected with morality. If these subjects have to be introduced at all, it will be only in so far as they may be thought to decide, or tend to decide, the question more immediately in view.

(α) from inquiry into the methods of ethics.

Thus it forms no part of the present inquiry to follow out the application to conduct of different ethical ends, or to exhibit the different practical systems to which different ends naturally lead. It might seem indeed, at first sight, as if the development of their practical consequences might solve the question as to the nature of the ends themselves. If we assume certain possible and primâ facie reasonable ethical ends, and then see what codes of morality they will yield, surely (it may be thought) that one which affords the most consistent and harmonious code for the guidance of life will be the end to be sought in preference to all others. |Limitation of this inquiry| But in order that the criticism of what Professor Sidgwick has called the methods of ethics may be able to answer the question as to the end or principle of ethics, certain conditions must first be complied with. |(aa) from necessity of investigating all logical alternatives,| In the first place, it is necessary that the ends or principles whose applications to conduct are to be examined must not be uncritically accepted from the fluctuating morality of common-sense nor from the commonplaces of the schools, but must be shown to be "alternatives between which the human mind" is "necessarily forced to choose when it attempts to frame a complete synthesis of practical maxims, and to act in a perfectly rational manner."[8]

(bb) from more than one self-consistent code being possible,

But although this requisite is complied with, it will still remain possible, in the second place, that two or more of the assumed principles may yield systems of practical rules perfectly self-consistent, and yet inconsistent with one another.[9] It would be very hard indeed to show that both the theory of Egoistic Hedonism, and what is generally called Utilitarianism, do not succeed in doing so: and thus the examination of methods is not of itself sufficient to settle the question of the end of conduct. And since—to quote Mr Sidgwick[10]—it is "a fundamental postulate of ethics that either these methods must be reconciled and harmonised, or all but one of them rejected," it follows that the criticism of methods leads naturally up to an independent criticism of principles, unless indeed it can be shown that one method only yields a consistent code of practical rules.