Americanism means many things. It means equality of rights and, therefore, equality of duty and of obligation. It means service to our common country. It means loyalty to one flag, to our flag, the flag of all of us. It means on the part of each of us respect for the rights of the rest of us. It means that all of us guarantee the rights of each of us. It means free education, genuinely representative government, freedom of speech and thought, equality before the law for all men, genuine political and religious freedom and the democratizing of industry so as to give at least a measurable equality of opportunity for all, and so as to place before us as our ideal in all industries where this ideal is possible of attainment, the system of cooperative ownership and management, in order that the tool users may, so far as possible, become the tool owners. Everything is un-American that tends either to government by a plutocracy or government by a mob. To divide along the lines of section or caste or creed is un-American. All privileges based on wealth, and all enmity to honest men merely because they are wealthy, are un-American—both of them equally so. Americanism means the virtues of courage, honor, justice, truth, sincerity, and hardihood—the virtues that made America. The things that will destroy America are prosperity-at-any-price, peace-at-any-price, safety-first instead of duty-first, the love of soft living and the get-rich-quick theory of life.
Preparedness must be of the soul no less than of the body. We must keep lofty ideals steadily before us, and must train ourselves in practical fashion so that we may realize these ideals. Throughout our whole land we must have fundamental common purposes, to be achieved through education, through intelligent organization and through the recognition of the great vital standards of life and living. We must make Americanism and Americanization mean the same thing to the native-born and to the foreign-born; to the man and to the woman; to the rich and to the poor; to the employer and to the wage-worker. If we believe in American standards, we shall insist that all privileges springing from them be extended to immigrants, and that they in return accept these standards with whole-hearted and entire loyalty. Either we must stand absolutely by our ideals and conceptions of duty, or else we are against them. There is no middle course, and if we attempt to find one, we insure for ourselves defeat and disaster.
— Theodore Roosevelt, Letter to Solomon Stanwood Menken, the head of the National Security League and the chairman of its Congress of Constructive Patriotism, January 10, 1917