Teaching then is the initial and decisive factor in the future of mankind, and the first duty of everyone who has the ability and opportunity, is to teach, or to subserve the teaching of, the true history of mankind and of the possibilities of this vision of a single world state that history opens out to us. Men and women can help the spread of the saving doctrine in a thousand various ways; for it is not only in homes and schools that minds are shaped. They can print and publish books, endow schools and teaching, organize the distribution of literature, insist upon the proper instruction of children in world wide charity and fellowship, fight against every sort of suppression or restrictive control of right education, bring pressure through political and social channels upon every teaching organization to teach history aright, sustain missions and a new sort of missionary, the missionaries to all mankind of knowledge and the idea of one world civilization and one world community; they can promote and help the progress of historical and ethnological and political science, they can set their faces against every campaign of hate, racial suspicion, and patriotic falsehood, they can refuse, they are bound to refuse, obedience to any public authority which oppresses and embitters class against class, race against race, and people against people. A belligerent government as such, they can refuse to obey; and they can refuse to help or suffer any military preparations that are not directed wholly and plainly to preserving the peace of the world. This is the plain duty of every honest man to-day, to judge his magistrate before he obeys him, and to render unto Cæsar nothing that he owes to God and mankind. And those who are awakened to the full significance of the vast creative effort now before mankind will set themselves particularly to revise the common moral judgment upon many acts and methods of living that obstruct the way of the world state. Blatant, aggressive patriotism and the incitements against foreign peoples that usually go with it, are just as criminal and far more injurious to our race than, for example, indecent provocations and open incitements to sexual vice; they produce a much beastlier and crueller state of mind, and they deserve at least an equal condemnation. Yet you will find even priests and clergymen to-day rousing the war passions of their flocks and preaching conflict from the very steps of the altar.