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.
做企业要有长远眼光,不能只看眼前利益。
The history of all hitherto existing society is the history of class struggles.
"The act of writing is an act of resistance against forgetting."