"Strictly speaking, no person who believes that wars between classes and nations are inevitable is fit to be in charge of the destiny of children. To believe in the unity of the human race and get children to believe it in early youth would mean the creation of that unity and the end of war."

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While the nation that has dared to be great, that has had the will and the power to change the destiny of the ages, in the end must die, yet no less surely the nation that has played the part of the weakling must also die; and whereas the nation that has done nothing leaves nothing behind it, the nation that has done a great work really continues, though in changed form, to live forevermore.

— Theodore Roosevelt