Love is or it ain't. Thin love ain't love at all.

In the dictatorship, time stands still.

I've probably earned the right to screw up a few times. I don't want the fear of failure to stop me from doing what I really care about.

让生活从此变成一首欢乐的诗。

Small improvements, consistently applied, lead to massive change over time.

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。