At the present time all civilized countries are becoming keenly aware of the value of their embodied artistic possessions. This is shown, in the most decisive manner possible, by the enormous prices placed upon them. Their pecuniary value enables even the stupidest and most unimaginative to realize the crime that is committed when they are ruthlessly and wantonly destroyed. Nor is it only the products of ancient art which have to-day become so peculiarly valuable. The products of modern science are only less valuable. So highly complex and elaborate is the mechanism now required to ensure progress in some of the sciences that enormous sums of money, the most delicate skill, long periods of time, are necessary to produce it. Galileo could replace his telescope with but little trouble; the destruction of a single modern observatory would be almost a calamity to the human race. Such considerations as these are, indeed, at last recognized in all civilized countries. The engines of destruction now placed at the service of war are vastly more potent than any used in the wars of the past. On the other hand, the value of the products they can destroy is raised in a correspondingly high degree. But a third factor is now intervening. And if the museums of Paris or the laboratories of Berlin were threatened by a hostile army it would certainly be felt that an international power, if it existed, should be empowered to intervene, at whatever cost to national susceptibilities, in order to keep the peace. Civilization, we now realize, is wrought out of inspirations and discoveries which are for ever passed and repassed from land to land; it cannot be claimed by any individual land. A nation's art-products and its scientific activities are not mere national property; they are international possessions, for the joy and service of the whole world. The nations hold them in trust for humanity. The international force which will inspire respect for that truth it is our business to create. The only question that remains--and it is a question the future alone will solve--is the particular point at which this ancient and overgrown stronghold of war, now being invested so vigorously from so many sides, will finally be overthrown, whether from within or from without, whether by its own inherent weakness, by the persuasive reasonableness of developing civilization, by the self-interest of the commercial and financial classes, or by the ruthless indignation of the proletariat. That is a problem still insoluble, but it is not impossible that some already living may witness its solution.