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.

The absence is often more powerful than the presence.

不要害怕失败，要害怕不去尝试。

领导力是激励他人实现他们认为不可能的事情。