世界充满奥秘，而这正是它的美。

Tomorrow may be hell, but today was a good writing day, and on the good writing days nothing else matters.

那些愿意为了安全而放弃自由的人，既得不到安全，也得不到自由。

The books we read are as important as the friends we keep.

我们始终坚持以用户为中心，不断优化产品和服务。