The only limits you have are the ones you set for yourself.

I don’t make art to be liked; I make it to make people think.

当我们编写可以“学习”的程序时，事实证明我们是这样做的，而他们不是。

I don’t let mistakes define me, I let them refine me.

The only way to be successful is to work hard and never give up.

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.