1. For some representative works, see Reinhold Niebuhr, The Nature and Destiny of Man (Boston: Prentice Hall, 1940); George Kennan, Around the Cragged Hill (New York: Norton, 1993); Martin Wight, Systems of States (Leicester, UK: Leicester University Press, 1977); and Herbert Butterfield, Christianity, Diplomacy, and War (London: Epworth, 1953). For two thoughtful critiques, see Joel Rosenthal, Righteous Realists (Baton Rouge: Louisiana State University Press, 1991); Michael Joseph Smith, Realist Thought from Weber to Kissinger (Baton Rouge: Louisiana State University Press, 1986).
2. “The most striking feature of the post—cold war world is its unipolarity. No doubt, multipolarity will come in time. In perhaps another generation or so there will be great powers coequal with the United States, and the world will, in structure, resemble the pre-World War I era. But we are not there yet, nor will we be for decades. Now is the unipolar moment.” Charles Krauthammer, “The Unipolar Moment,” Foreign Affairs: America and the World 70, no. 1, (1990/91), 23–34, quote from pp. 23–24.
3. See, for example, Reinhold Niebuhr, The Structure of Nations and Empires (New York: Scribner, 1959), 267–69, 281–86, cited in Reinhold Niebuhr, “Foreign Policy and World Responsibility,” Reinhold Niebuhr: On Politics (New York: Scribner, 1960), 298–318. See also “Turn and Turn Again,” Economist, March 1, 2007, p. 36.
4. “Gold from the Storm,” Economist, June 30, 2007, p. 83–84.
5. “Breathing Fire,” Economist, April 24, 2007, retrieved September 6, 2007, from http://www.economist.com/displayStory.cfm?story_id=9063414&fsrc=RS.