"Every book is a conversation between the author and the reader."

I don't think that you have any insight whatsoever into your capacity for good until you have some well-developed insight into your capacity for evil.

一个组织的客户服务质量决定了其客户忠诚度的质量。

一个好的数学家是能看到定理之间类比的人；一个伟大的数学家是能看到类比之间的类比的人。