The loss is restricted to comparatively few, and, since the fundamental notion of all materialistic philosophy inevitably leads to selfishness, the majority of the citizens have no reason for not sacrificing the minority in their own interests. Thus, those who from the materialistic standpoint deny the necessity of war will admit its expediency from motives of self-interest.
Reflection thus shows not only that war is an unqualified necessity, but that it is justifiable from every point of view. The practical methods which the adherents of the peace idea have proposed for the prevention of war are shown to be absolutely ineffective.
It is sometimes assumed that every war represents an infringement of rights, and that not only the highest expression of civilization, but also the true welfare of every nation, is involved in the fullest assertion of these rights, and proposals are made from time to time on this basis to settle the disputes which arise between the various countries by Arbitration Courts, and so to render war impossible. The politician who, without side-interests in these proposals, honestly believes in their practicability must be amazingly short-sighted.
Two questions in this connection are at once suggested: On what right is the finding of this Arbitration Court based? and what sanctions insure that the parties will accept this finding?
To the first question the answer is that such a right does not, and cannot, exist. The conception of right is twofold. It signifies, firstly, the consciousness of right, the living feeling of what is right and good; secondly, the right laid down by society and the State, either written or sanctioned by tradition. In its first meaning it is an indefinite, purely personal conception; in its second meaning it is variable and capable of development. The right determined by law is only an attempt to secure a right in itself. In this sense right is the system of social aims secured by compulsion. It is therefore impossible that a written law should meet all the special points of a particular case. The application of the legal right must always be qualified in order to correspond more or less to the idea of justice. A certain freedom in deciding on the particular case must be conceded to the administration of justice. The established law, within a given and restricted circle of ideas, is only occasionally absolutely just.
The conception of this right is still more obscured by the complex nature of the consciousness of right and wrong. A quite different consciousness of right and wrong develops in individuals, whether persons or peoples, and this consciousness finds its expression in most varied forms, and lives in the heart of the people by the side of, and frequently in opposition to, the established law. In Christian countries murder is a grave crime; amongst a people where blood-vengeance is a sacred duty it can be regarded as a moral act, and its neglect as a crime. It is impossible to reconcile such different conceptions of right.