最好的数学是永恒的。

We don't stop playing because we grow old; we grow old because we stop playing.

I believe in the power of perseverance.

用户体验差1%，在规模化后就是100%的灾难。

A mind needs books like as word needs a whetstone.

我们付出的爱是我们唯一能保留的爱。