I don’t focus on the score, I focus on the process.

世界上没有像大城市那样的孤独。

The true measure of a man is how he treats someone who can do him absolutely no good.

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.