"The biggest victories come after the toughest battles."

新观点总是被怀疑和通常反对，原因只是因为它们尚未变得普遍。

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.

要我说，人性之善是不能用金钱衡量的，善即是善，钱即是钱，可不要把麦子和谷壳搞混了。

自由政府的唯一准则应该是不要信任任何拥有权力的人，以免危及公共自由。