Throughout his life, Albert Einstein would retain the intuition and the awe of a child. He never lost his sense of wonder at the magic of nature's phenomena-magnetic fields, gravity, inertia, acceleration, light beams-which grown-ups find so commonplace. He retained the ability to hold two thoughts in his mind simultaneously, to be puzzled when they conflicted, and to marvel when he could smell an underlying unity. "People like you and me never grow old," he wrote a friend later in life. "We never cease to stand like curious children before the great mystery into which we were born.

I think one problem we've had is that people who are smart and creative and innovative as engineers went into financial engineering.

Politics is for the present, while our equations are for eternity.

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.

What Einstein was able to do was - to use a cliche - think out of the box.

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.

When there are multiple versions of a story, you really have three ways to go. You can pick the most sensational version. You can try to balance things in your gut to get to what you think is the honest truth. Or you can err on the side of kindness.