I wonder now how tough you have to be to get big things done.

I think the biggest innovations of the twenty-first century will be the intersection of biology and technology. A new era is beginning, just like the digital one was when I was his age.

Terrorism is a horrible thing that is the great threat to civilization on our planet.

You and I love understanding American Revolution, but let's also understand the digital revolution, because that makes us more comfortable with our technology.

Leonardo da Vinci was lucky to be born the same year that Johannes Gutenberg opened his printing shop. As a young person, he could get information about whatever struck his curiosity. The Internet is to our age what Gutenberg's press was to his, so he would have loved being alive today.

We're all swimming in this digital revolution that we live in.

If you want to be a great American, you have got to understand Ben Franklin, Thomas Jefferson, George Washington, how the American Revolution happened. I think if you want to be a good citizen of the digital age, it helps to feel comfortable with both the people and the ways of thinking that created the digital revolution.