As a matter of urgency, America needs to begin to prepare itself and the rest of the world for this uncertain future. To wait until American dominance is already gone would be to squander the enormous opportunity that comes with primacy. America must devise a grand strategy for the transition to a world of multiple power centers now, while it still has the luxury of doing so. This is the central challenge of The End of the American Era.

From the preface to the 2002 Knopf Edition - The End of the American Era (2002)