真正的发现是那种让我在想停止做哲学时能够停止的发现。
The real discovery is the one that makes me capable of stopping doing philosophy when I want to.
The magic of editing lies in the invisible transitions.
这句话其实是莎士比亚借哈姆雷特之口说的，但是霍金非常喜欢，曾在自己著作中多次引用，所以很多人误以为本句话是霍金说的。
How can our great society tolerate the continued brutalization of its citizens by crazed misfits? Criminals must be told that their CIVIL LIBERTIES END WHEN AN ATTACK ON OUR SAFETY BEGINS!