快乐是生活的关键。没有快乐，你就一无所有。
Happiness is the key to life. Without happiness, you have nothing.
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.
最好的游戏来自于合作良好并拥有共同愿景的团队。
"The world is not a wish-granting factory."
Le génie est comme l'or: il faut le faire sortir de la mine.
The world is full of obvious things which nobody by any chance ever observes.