国际体系本质上是竞争性的，国家不断试图互相超越。
The international system is inherently competitive, and states are constantly trying to outmaneuver each other.
The science of government it is my duty to study, more than all other sciences; the arts of legislation and administration and negotiation ought to take the place of, indeed exclude, in a manner, all other arts.
真相很少是纯粹的，也从来不是简单的。