The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.

只要有一个程序，我们将永远不会用完所有要编程的东西。

实现明天的唯一限制将是我们今天的疑虑。

在不确定的时期，适应力和韧性成为我们最大的优势。

Let me explain. I think it would be very unusual for anyone here, or anyone watching, to be envious of the Queen of England. Even though she is much richer than any of you are, and she's got a very large house, the reason why we don't envy her is because she's too weird.