If you really could take the CO2, when you burn hydrocarbons - coal, for example - if you could really capture the carbon and sequester it - they call it CCS - if the extra capital cost, energy cost, and storage costs over time didn't make it super expensive, then that's another path that you could go down.

Looking at these issues as a businessman, I believe that investing in the world's poorest people is the smartest way that our government spends money.

If your business is not on the Internet, then your business will be out of business.

People who say they don't see the acceleration of innovation is a wilful blindness. We are innovation at a wonderful speed for the basic things we think everyone should get.

The 'Billionaire' song is what my kids tease me with. They sing it to me. It's funny.

I think it makes sense to believe in God, but exactly what decision in your life you make differently because of it, I don't know.

If something's expensive to develop, and somebody's not going to get paid, it won't get developed. So you decide: Do you want software to be written, or not?