I do not desire in the least, of course, to create the impression that I regard the truths here elaborated as my "discovery," as though no one had worked in this field before. Properly speaking, there is no such thing as priority in ideas. The interdependence of peoples was proclaimed by philosophers three thousand years ago. The French school of pacifists—Passy, Follin, Yves Guyot, de Molinari, and Estournelles de Constant—have done splendid work in this field; but no one of them, so far as I know, has undertaken the work of testing in detail the politico-economic orthodoxy by the principle of the economic futility of military force; by bringing that principle to bear on the everyday problems of European statecraft. If there is such an one—presenting the precise notes of interrogation which I have attempted to present here—I am not aware of it. This does not prevent, I trust, the very highest appreciation of earlier and better work done in the cause of peace generally. The work of Jean de Bloch, among others, though covering different ground from this, possesses an erudition and bulk of statistical evidence to which this can make no claim. The work of J. Novikow, to my mind the greatest of all, has already been touched upon.