相信生命是值得的,你的信仰将有助于创造这个事实。
The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind.
宇宙不仅比我们想象的更奇怪,它比我们能够想象的还要奇怪。
You have to spend some energy and effort to see the beauty of math.
I think of a hero as someone who understands the degree of responsibility that comes with his freedom.