地理学是关于地方的科学，而不是关于人的科学。

I would say that in the long run probably Communist China is likely to be in more of an expansionist phase than Soviet Russia...In their tactics, the Chinese Communists are probably the greater menace;

The Goal Isn't to Beat Others, But to Beat Yourself.

Great engineering is invisible—it just works seamlessly.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."