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.

解释：看到兔子再回头唤猎狗，还不算太晚；跑掉了羊再去修补羊圈，也不算太迟。

Mathematics allows us to see the hidden structures that govern the world around us.

教育永远不会结束，沃森。它是一系列的课程，最后一课是最伟大的。

我是你活着的原因，我是你生存的原因。