Apart from trade, the interests of nations coincide in all that makes what we call civilization. Inventions and discoveries bring benefit to all. The progress of science is a matter of equal concern to the whole civilized world. Whether a man of science is an Englishman, a Frenchman, or a German is a matter of no real importance. His discoveries are open to all, and nothing but intelligence is required in order to profit by them. The whole world of art and literature and learning is international; what is done in one country is not done for that country, but for mankind. If we ask ourselves what are the things that raise mankind above the brutes, what are the things that make us think the human race more valuable than any species of animals, we shall find that none of them are things in which any one nation can have exclusive property, but all are things in which the whole world can share. Those who have any care for these things, those who wish to see mankind fruitful in the work which men alone can do, will take little account of national boundaries, and have little care to what state a man happens to owe allegiance.
The importance of international coöperation outside the sphere of politics has been brought home to me by my own experience. Until lately I was engaged in teaching a new science which few men in the world were able to teach. My own work in this science was based chiefly upon the work of a German and an Italian. My pupils came from all over the civilized world: France, Germany, Austria, Russia, Greece, Japan, China, India, and America. None of us was conscious of any sense of national divisions. We felt ourselves an outpost of civilization, building a new road into the virgin forest of the unknown. All coöperated in the common task, and in the interest of such a work the political enmities of nations seemed trivial, temporary, and futile.
But it is not only in the somewhat rarefied atmosphere of abstruse science that international coöperation is vital to the progress of civilization. All our economic problems, all the questions of securing the rights of labor, all the hopes of freedom at home and humanity abroad, rest upon the creation of international good-will.
So long as hatred, suspicion, and fear dominate the feelings of men toward each other, so long we cannot hope to escape from the tyranny of violence and brute force. Men must learn to be conscious of the common interests of mankind in which all are at one, rather than of those supposed interests in which the nations are divided. It is not necessary, or even desirable, to obliterate the differences of manners and custom and tradition between different nations. These differences enable each nation to make its own distinctive contribution to the sum total of the world's civilization.
What is to be desired is not cosmopolitanism, not the absence of all national characteristics that one associates with couriers, wagon-lit attendants, and others, who have had everything distinctive obliterated by multiple and trivial contacts with men of every civilized country. Such cosmopolitanism is the result of loss, not gain. The international spirit which we should wish to see produced will be something added to love of country, not something taken away. Just as patriotism does not prevent a man from feeling family affection, so the international spirit ought not to prevent a man from feeling affection for his own country. But it will somewhat alter the character of that affection. The things which he will desire for his own country will no longer be things which can only be acquired at the expense of others, but rather those things in which the excellence of any one country is to the advantage of all the world. He will wish his own country to be great in the arts of peace, to be eminent in thought and science, to be magnanimous and just and generous. He will wish it to help mankind on the way toward that better world of liberty and international concord which must be realized if any happiness is to be left to man. He will not desire for his country the passing triumphs of a narrow possessiveness, but rather the enduring triumph of having helped to embody in human affairs something of that spirit of brotherhood which Christ taught and which the Christian churches have forgotten. He will see that this spirit embodies not only the highest morality, but also the truest wisdom, and the only road by which the nations, torn and bleeding with the wounds which scientific madness has inflicted, can emerge into a life where growth is possible and joy is not banished at the frenzied call of unreal and fictitious duties. Deeds inspired by hate are not duties, whatever pain and self-sacrifice they may involve. Life and hope for the world are to be found only in the deeds of love.