我們要做就做最好的，否則就不做。
We either do the best or we don't do it at all.
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.
It's easier to ask forgiveness than it is to get permission.
譯文：用人如同使用器具，應(yīng)取其專(zhuān)長(zhǎng)。主張根據(jù)才能特點(diǎn)任用，反對(duì)求全責(zé)備。