Page:Principia Ethica 1922.djvu/68

34 of the latter is that it does contain analytically that which it is said to be its part. And yet this very self-contradictory doctrine is the chief mark which shews the influence of Hegel upon modern philosophy—an influence which pervades almost the whole of orthodox philosophy. This is what is generally implied by the cry against falsification by abstraction: that a whole is always a part of its part! ‘If you want to know the truth about a part,’ we are told, ‘you must consider not that part, but something else—namely the whole: nothing is true of the part, but only of the whole.’ Yet plainly it must be true of the part at least that it is part of the whole; and it is obvious that when we say it is, we do not mean merely that the whole is a part of itself. This doctrine, therefore, that a part can have ‘no meaning or significance apart from its whole’ must be utterly rejected. It implies itself that the statement ‘This is a part of that whole’ has a meaning; and in order that this may have one, both subject and predicate must have a distinct meaning. And it is easy to see how this false doctrine has arisen by confusion with the two relations (1) and (2) which may really be properties of wholes.

(a) The existence of a part may be connected by a natural or causal necessity with the existence of the other parts of its whole; and further what is a part of a whole and what has ceased to be such a part, although differing intrinsically from one another, may be called by one and the same name. Thus, to take a typical example, if an arm be cut off from the human body, we still call it an arm. Yet an arm, when it is a part of the body, undoubtedly differs from a dead arm; and hence we may easily be led to say ‘The arm which is a part of the body would not be what it is, if it were not such a part,’ and to think that the contradiction thus expressed is in reality a characteristic of things. But, in fact, the dead arm never was a part of the body; it is only partially identical with the living arm. Those parts of it which are identical with parts of the living arm are exactly the same, whether they belong to the body or not; and in them we have an undeniable instance of one and the same thing at one time forming a part, and at another not forming a part of the presumed ‘organic whole.’