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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.

Resilience is not a trait that people either have or do not have. It involves behaviors, thoughts and actions that can be learned and developed in anyone.

我們都是自己經(jīng)歷的囚徒。

我一直都是獨自一人，但我從不感到孤獨。

活著就是受苦，生存就是在苦難中找到某種意義。