The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.
安全困境是国际政治的一个基本特征，因为国家增加自身安全的努力往往会降低其他国家的安全。
The propensity to truck， barter， and exchange one thing for another is common to all men， and to be found in no other race of animals.
我不做合作，我做的是帮忙。
Policymakers should be open to revising their views based on new evidence.
Human suffering and joy are universal, no matter where we come from.
The arithmetic of L-functions is a journey into the hidden patterns of the mathematical universe.