我不是为眼睛做音乐，我是为耳朵做音乐。

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.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.