Even so, America remains by far the world’s most powerful country; its decline has more to do with its incompetent use of power than with the emergence of competitors. It is American leaders’ “suicidal statecraft,” to use Arnold Toynbee’s pithy phrase for what he considered the ultimate cause of imperial collapse, that is to blame for America’s plight.
即使如此，美国依旧是世界上最为强大的国家；其衰落与其运用其实力不当有关，其程度超过竞争对手的崛起。借用英国历史学家汤因比简练又力的话来说，美国的境况应当归咎于美国领导人“自杀式的治国之策”。汤因比用这一词语来总结帝国崩溃的最终原因。