9Christopher Layne: Rethinking American Grand Strategy: Hegemony or Balance of Power in the Twenty-first Centmy? World PolicyJournal, Summer1998, pp. 8-28.
10Charles P. Schleicher, Introduction to International Relations(Englewood Cliffs, N.J.: Prentice-Hall, 1954), p.368.转引自多尔蒂,第37页。