法律不是一个封闭的逻辑系统，而是一种社会控制手段。

对心灵的研究必须价值中立。

不平等并非不可避免。它是我们通过所追求的政策做出的选择。

I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to go to war with one another.

Every setback is a setup for a comeback.