Science progresses not just by answering questions, but by asking better ones.

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;

我不后悔任何事情，因为每一步都让我走到了这里。

"I write to understand, to question, to explore the complexities of human nature."

组织的质量由其过程的质量决定。

在数学中，提出问题的艺术必须比解决问题更有价值。