" Throughout the years of research and writing, my wife, Silvana, has been my best friend and sharpest critic, providing incisive feedback, unwavering support, good humor, and timely kicks in the rear. She scrutinized every word of this book, except for this paragraph, and her wise judgment vastly improved the final product. More important, her love and laughter lifted my spirits and made me whole. This book would not exist without her, and my life would not be nearly as fulfilling. "

― , Unrivaled: Why America Will Remain the World's Sole Superpower