Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.
在数学研究中,坚持是关键;许多伟大的成果来自于一遍又一遍地从不同角度看待同一个问题。
Every town has its ghosts, and every ghost has its story.
Innovation is the key to progress.
Investing in technology is investing in the future of energy.