The whole philosophy of economic nationalism, which is now universal throughout the world, is based upon the false belief that the economic interest of one nation is necessarily opposed to that of another. This false belief, by producing international hatreds and rivalries, is a cause of war, and in this way tends to make itself true, since when war has once broken out the conflict of national interests becomes only too real.
Source: Bertrand Russell: Ideas That Have Harmed Mankind，1946.
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