The real moat is users' dependence on you.

世界就是一切事实的总和。

Literature is freedom.

【释义】：智慧的人处世，没有什么比保持内心的平静和中庸更重要的了。悠然自得，心中与道同在，才能真正自在和谐。

史记

I don't care what you say about me as long as it's not true.

韩寒谈“专家”的特点

In mathematics, as in life, the most elegant solutions often arise from a deep understanding of the problem.

世界上最好的粉丝是单向组合的粉丝。