"It is familiar, also, to the English, and has lately been pressed there as the probable final solution of the Irish question. "It has insistently suggested itself as the solution of the Balkan problem. "In a lesser way it already is represented in the structure of Austria-Hungary." America's Great Work. "This principle of nation building, of international building through federation, certainly has in it the seeds of the world's next great development--and we Americans are in a position both to expand the theory and to illustrate the practice. It seems to me that this is the greatest work which America will have to do at the end of this war. "These are the things which I am writing to my European correspondents in the several belligerent countries by every mail. "The cataclysm is so awful that it is quite within the bounds of truth to say that on July 31 the curtain went down upon a world which never will be seen again. "This conflict is the birth-throe of a new European order of things. The man who attempts to judge the future by the old standards or to force the future back to them will be found to be hopelessly out of date. The world will have no use for him. The world has left behind forever the international policies of Palmerston and of Beaconsfield and even those of Bismarck, which were far more powerful. "When the war ends conditions will be such that a new kind of imagination and a new kind of statesmanship will be required. This war will prove to be the most effective education of 500,000,000 people which possibly could have been thought of, although it is the most costly and most terrible means which could have been chosen. The results of this education will be shown, I think, in the process of general reconstruction which will follow. "All the talk of which we hear so much about, the peril from the Slav or from the Teuton or from the Celt, is unworthy of serious attention. It would be quite as reasonable to discuss seriously the red-headed peril or the six-footer peril. "There is no peril to the world in the Slav, the Teuton, the Celt, or any other race, provided the people of that race have an opportunity to develop as social and economic units, and are not bottled up so that an explosion must come. "It is my firm belief that nowhere in the world, from this time on, will any form of government be tolerated which does not set men free to develop in this fashion." I asked Dr. Butler to make some prognostication of what the United States of Europe, which he so confidently expects, will be. He answered: Has Advanced Much. "I can say only this: The international organization of the world already has progressed much further than is ordinarily understood. Ever since the Franco-Prussian war and the Geneva Arbitration, both landmarks in modern history, this has advanced inconspicuously, but by leaps and bounds.