The most important single aspect of software development is to be clear about what you are trying to build.

The beauty of mathematics lies not only in its ability to describe the world but also in its power to reveal the hidden structures that govern it.

The advantage of Chinese internet companies is that we understand the local market better.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

年轻时，你以为世界是一个可以随心所欲生活的地方。但随着年龄增长，你意识到世界是一个你必须按照必须的方式生活的地方。

真正的对手，包围的敌人，不是俄罗斯人，而是他们自己的愚蠢。

效率和道德必须齐头并进。今天的偷工减料明天将让我们付出沉重代价。