The book is a mirror: if an ape looks into it, an apostle is unlikely to look out.

怎样的人，他才敢如此指责自己的错误呢？

数学是人类精神最美丽和最强大的创造。

"The past is a puzzle, and the historian is the person who tries to put the pieces together."

爱得越多，痛苦越多，但活得也越深刻。