A proof is a device for convincing someone else that a mathematical statement is true.

Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.

老时相信一切，中年怀疑一切，青年知道一切。

我相信建筑应该激发和鼓舞人心。

跨行业合作是解决全球能源挑战的关键。

I'm a person who likes to be unusual.

The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.