书籍是最安静、最恒久的朋友;它们是最易接近、最睿智的顾问。
你们要做愤世嫉俗者,还是踏实的建设者?
如果你不疯狂,你就不是真正的天才。
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.