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。

书籍是最安静、最恒久的朋友；它们是最易接近、最睿智的顾问，也是最耐心的老师。

The laws of physics are universal, but our understanding of them is constantly evolving.

"The world is a book, and those who do not travel read only one page."

I don't think President Bush is doing anything at all about Aids. In fact, I'm not sure he even knows how to spell Aids.

Self-education is, I firmly believe, the only kind of education there is.

计算机是最终的污染者：其粪便与所生产的食物没有区别。