The definition of who's literate and who's not keeps changing. So, in Neanderthal times, if you painted on a cave wall, that was enough to transmit how you hunt, how you eat, how you cook, how you dress, and we can read about that.

When you go and you tour Europe, or you go and you tour Egypt, or you go and you tour Iraq, or you go and you tour Afghanistan, or India, or whatever. Governments get to a point where they're illegitimate because people just give up on them as far as being leaders who have their country's interests at heart.

Real estate prices are way out of whack with what people earn.

When I grew up, I simply didn't have mentors that said, "Science is important. Science helps you build a country. Science makes a country powerful." And that's such a simple thought, but when you think about what's powered Taiwan and Korea and Silicon Valley and Cambridge.

Until African-Americans and Hispanics can get serious, not just about area studies, which are important, but also about science and technology, they're not going to generate that wealth and that job within those communities. And that has absolutely devastating consequences for the places where people live, for the jobs and for the wealth.

Try to live without something digital - without digital code for about two hours, very hard to do if you're awake.

China has, all of a sudden, found a way of putting the best of the best to work to build an economy that is growing at 10% to 12% per year, and now India is following. And those changes and how quickly they've come out of this mess, how little debt they have, is really important.