Page:Principia Ethica 1922.djvu/78

44 also a certain animal, the joke and the animal must be the same thing. We must not, therefore, be frightened by the assertion that a thing is natural into the admission that it is good; good does not, by definition, mean anything that is natural; and it is therefore always an open question whether anything that is natural is good.

28. But there is another slightly different sense in which the word ‘natural’ is used with an implication that it denotes something good. This is when we speak of natural affections, or unnatural crimes and vices. Here the meaning seems to be, not so much that the action or feeling in question is normal or abnormal, as that it is necessary. It is in this connection that we are advised to imitate savages and beasts. Curious advice, certainly; but, of course, there may be something in it. I am not here concerned to enquire under what circumstances some of us might with advantage take a lesson from the cow. I have really no doubt that such exist. What I am concerned with is a certain kind of reason, which I think is sometimes used to support this doctrine—a naturalistic reason. The notion sometimes lying at the bottom of the minds of preachers of this gospel is that we cannot improve on nature. This notion is certainly true, in the sense that anything we can do, will be a natural product. But that is not what is meant by this phrase; nature is again used to mean a mere part of nature; only this time the part meant is not so much the normal as an arbitrary minimum of what is necessary for life. And when this minimum is recommended as ‘natural’—as the way of life to which Nature points her finger—then the naturalistic fallacy is used. Against this position I wish only to point out that though the performance of certain acts, not in themselves desirable, may be excused as necessary means to the preservation of life, that is no reason for praising them, or advising us to limit ourselves to those simple actions which are necessary, if it is possible for us to improve our condition even at the expense of of doing what is in this sense unnecessary. Nature does indeed set limits to what is possible; she does control the means we have at our disposal for obtaining what is good;