On pricing: "There are two kinds of companies， those that work to try to charge more and those that work to charge less. We will be the second."

The city is a living organism that constantly evolves.

每个人都有不为世人所知的秘密悲伤；我们常常称一个人冷漠，而实际上他只是悲伤。

Success comes from persistence and the courage to innovate.

过度捕捞是从子孙后代那里偷窃——我们必须成为制止它的一代。

The goal of cognitive science is to explain how the mind works in terms of information processing.

小步快跑，快速迭代。

知识的最大敌人不是无知，而是知识的幻觉。