国家是理性的行为者，他们总是会按照自己的利益行事。
States are rational actors, and they will always act in their own self-interest.
善是无法定义的。
Human beings are not born once and for all on the day their mothers give birth to them, but life obliges them over and over again to give birth to themselves.
我们这个时代的巨大挑战是建立能够管理现代社会复杂性的机构。