Interfaces keep things tidy, but don't accelerate growth: Functions do.

文学是人类灵魂的镜子，在其中我们都能看到自己的反映。

创新需要勇气，更需要坚持。

So happiness is the most popular word we have heard through the past two years. Happiness is not only related to personal experiences and personal values, but also, it's about the environment.

The Internet is a tool for communication, but it also requires us to be good listeners.

Time erodes all such beauty, but what it cannot diminish… is the wonderful workings of your mind. Your humor, your kindness… and your moral courage.

老年人相信一切，中年人怀疑一切，年轻人知道一切。

一个理论的优雅不仅在于其数学表述，还在于其在一个统一框架下连接不同现象的能力。