Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.
你可以锁上你的图书馆;但对我的思想自由,你无法设置任何门闩、锁或插销。
The most important word in science is not 'Eureka!' but 'That's funny...'
The P versus NP problem is one of the most important unsolved problems in computer science.
Innovation distinguishes between a leader and a follower.
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,也是最耐心的老师。