有時最難的并非放手，而是學(xué)會重新開始。
Sometimes the hardest part isn't letting go but learning to start over.
Think wrongly, if you please, but in all cases, think for yourself.
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.
Every frame counts in telling the story.