"The only real equality is in the cemetery."
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。