国际体系的结构，而不是个别国家的意图，是国家行为的主要决定因素。
The structure of the international system, not the intentions of individual states, is the primary determinant of state behavior.
The only people who see the whole picture are the ones who step out of the frame.
To be free is not to have the power to do anything you want, but to have the power to do what is right.
认为有一个钟声会告诉投资者何时进入或退出市场的想法根本不可信。