人类留下的痕迹往往是伤痕。
创新不是目的，解决用户真实需求才是根本。
The true power of mathematics is not in its complexity, but in its simplicity and elegance.
安全是我们所有运营的首要任务。任何进步都不值得以员工和社区的福祉为代价。
Happiness is beneficial for the body, but it is grief that develops the powers of the mind.
On pivoting: "If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve."