心灵是一台可以通过计算原理来理解的机器。
价格是你付出的，而价值才是你得到的。
我只是一个音乐人。我没有什么特别的才能，只是一个热爱音乐的人。
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.
快乐有益于身体，但悲伤才能发展心灵的力量。