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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.

我認為我和吉姆值得稱贊的主要原因是...選擇了正確的問題并堅持研究它。

真正的進步發生在我們停止爭論誰是對的，而開始合作于有效的事情上。