purely spiritual evil: the hatred, the injustice, the repudiation of truth, the artificial conflict, where, if once the blindness of atavistic instincts and the sinister influence of anti-social interests, such as those of armaments with their subservient press, could be overcome, it would be seen that there is a real consonance of interest and essential identity of human nature, and every reason to replace hatred by love. Mr. Norman Angell has well shown how unreal, as applied to the conflicts of civilized States, is the whole vocabulary of international conflict, how illusory are the gains supposed to be obtained by victory, and how fallacious are the injuries to which nations, in times of peace, are supposed to inflict upon each other in economic competition. The importance of this thesis lies, not so much in its direct economic application, as in the hope which it affords for the liberation of better spiritual impulses in the relations of different communities. To love our enemies, however desirable, is not easy; and therefore it is well to realize that the enmity springs only from blindness, not from any inexorable physical necessity.
III.
Are there any wars which achieve so much for the good of mankind as to outweigh all the evils we have been considering? I think there have been such wars in the past, but they are not wars of the sort with which our diplomatists are concerned, for which our armies and navies have been prepared, and which are exemplified by the present conflict. For the purposes of classification we may roughly distinguish four kinds of wars, though of course in any given case a war is not likely to be quite clearly of any one of the four kinds. With this proviso we may distinguish: (1) Wars of Colonization; (2) Wars of Principle; (3) Wars of Self-defence; (4) Wars of Prestige. Of these four kinds I should say that the first and second are fairly often justified; the third seldom, except against an adversary of inferior civilization; and the fourth, which is the
