If a nation is to exist at all, certain basic principles and forms of procedure must be generally accepted by all its citizens. As regards these essential things we cannot afford to differ at all and yet try to live side by side. In English-speaking countries, for instance, we must needs all accept and support the constitutional bill of rights. Without freedom of speech, of the press and religious worship, to mention three of the more important guaranteed constitutional rights, any English-speaking country would very quickly find itself in the throes of revolution and civil war. We must agree, also, to be subject to the same general principles of morality. If a citizen argues, for instance, that the crimes of robbery and murder are sound and correct modes of political procedure, he thereby rejects his citizenship. We must all agree to live peaceably and lawfully under the same constitutional and legal system. Finally, to attain national unity and national peace we must not only accept, but unitedly support, with affection and enthusiasm, the prevailing system of law and social order. That great poet of democracy, Walt Whitman, expresses this thought so exquisitely: "To hold men together by paper and seal, or by compulsion, is no account; That only holds men together which aggregates all in a living principle, as the hold of the limbs of the body, or the fibres of plants." Our American people, if we are to be perfected in unity, must come to be a sort of family. Differences of personality among individuals, differences of opinions among groups, differences which show themselves in a variety of religious beliefs and political policies, all these are not only natural but necessary to civilization and progress. Absolute unity in thought and action can be attained only among a tribe of savages. The political unity of an absolute monarchy is a leftover from savagery. Above all, these valuable and desirable differences show in all the interesting variations to be discovered in our cultural life. In the education of children these differences of personality should be not only tolerated but purposely developed. The growth of this quality of personality is one of the most precious results of our democratic civilization. Yet it can not be too much emphasized that all these differences must work themselves out and perform all their desirable functions within the restricted bounds of a generally accepted law and custom. Otherwise nationality is impossible; and this is but another way of saying that human society is impossible.