人没有权利杀害他的兄弟。他穿着制服这样做也不能成为借口。
快乐的情感是来源于与不好的事的对比，而快乐本身并没有任何意义。
Innovation is not a choice, but a necessity for survival.
我在哪里，我不知道，我永远不会知道，在沉默中你不知道，你必须继续，我不能继续，我会继续。
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
The most valuable resource in the world is not oil—it's human potential.