The simple fact is that we must not-and we will not-surrender our borders to those who wish to exploit our history of compassion and justice.

I got a letter from 13-year-old Ryan from Belfast. Now, Ryan, if you're out in the crowd tonight, here's the answer to your question. No, as far as I know, an alien spacecraft did not crash in Roswell, New Mexico, in 1947. And, Ryan, if the United States Air Force did recover alien bodies, they didn't tell me about it, either, and I want to know.

I believe we can do much more to adapt to the structural changes in the global economy, get high-end manufacturing back here, set up clusters of economic activity where you have, among other things, continuous retraining of people well into their middle years so they never become irrelevant to the current job market.

NASA even sent Chuck Berry's music on a space probe searching for intelligent life in outer space. Well, now, if they're out there, they're duck walking

To realize the full possibilities of this economy, we must reach beyond our own borders, to shape the revolution that is tearing down barriers and building new networks among nations and individuals, and economies and cultures: globalization. It's the central reality of our time.

We all have to learn to live together.

Don't you ever orget that in the end, our future is tied to people, that it's more about ideas than a tax.