"The only real equality is in the cemetery."

在数学中，提出问题的艺术必须比解决问题更有价值。

I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance.

科学不仅仅是关于事实，而是理解支配这些事实的基本原理。

小小的行动，乘以数百万次，可以改变世界。