测试程序的最好方法是测试它。

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.

在我们所从事的技艺中，没有人能成为大师，我们都是学徒。

The intersection of mathematics and computer science is where some of the most exciting discoveries are made.

你越努力，就越幸运。