if it is to serve its purpose, must be simultaneous and by mutual agreement among all the Great Powers. And it is not likely to be successful so long as hatred and suspicion rule between nations, for each nation will suspect its neighbor of not carrying out the bargain fairly. A different mental and moral atmosphere from that to which we are accustomed in international affairs will be necessary if agreements between nations are to succeed in averting catastrophes. If once such an atmosphere existed it might be perpetuated and strengthened by wise institutions; but it cannot be CREATED by institutions alone. International co-operation requires mutual good will, and good will, however it has arisen, is only to be PRESERVED by co-operation. The international future depends upon the possibility of the initial creation of good will between nations.
It is in this sort of matter that revolutions are most useful. If the Russian Revolution had been accompanied by a revolution in Germany, the dramatic suddenness of the change might have shaken Europe, for the moment, out of its habits of thought: the idea of fraternity might have seemed, in the twinkling of an eye, to have entered the world of practical politics; and no idea is so practical as the idea of the brotherhood of man, if only people can be startled into