最好的投资是那些能够建立伟大公司的人，而不仅仅是想法。

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.

Leadership is about making the tough decisions and standing by them.