I'm a true believer that if you put in the work, the results will come.

I don't have to prove anything to anyone. I only have to follow my heart and concentrate on what I want to say to the world. I run my world.

A day wasted on others is not wasted on one's self.

人生就是走自己选择的路。

I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.

可持续发展不是一个流行词，而是每天做得更好的承诺。