The only limit to our realization of tomorrow is our doubts of today.

I always try to find the humanity in every story I tell.

Marxian Socialism must always remain a portent to the historians of Opinion — how a doctrine so illogical and so dull can have exercised so powerful and enduring an influence over the minds of men， and， through them， the events of history.

Understanding the computational complexity of learning problems is essential for developing efficient algorithms.

真相很少是纯粹的，也从不简单。

我对解决已经解决的问题不感兴趣。

任何有机体最难做的事情就是观察自己。

制药行业必须在快速创新与严格的安全标准之间取得平衡。