书籍是反映我们挣扎的镜子。

我们始终坚持以用户为中心，不断优化产品和服务。

永远不要低估一个精心设计的实验的力量。

Poetry should surprise by a fine excess and not by singularity—it should strike the reader as a wording of his own highest thoughts, and appear almost a remembrance.

志村簇的研究证明了数学的统一性。