With nuclear weapons, you'd think you would probably stop after killing 100million. Smallpox won't stop. Because the population is naïve, and there are no real preparations. That, if it got out and spread, would be a larger number.

The people who resist change will be confronted by the growing number of people who see that better ways are available; thanks to technology.

When you lose a customer, it can be tempting to tell each other, "That customer's not very sharp. They just made the wrong decision".

In the same way that when the car got going, people thought it would be an electric car, people thought it would be a steam car. Actually, the dark horse in that race was internal combustion, but because of the energy density of gasoline and discovery of oil in large amounts at that point in first Pennsylvania and then Texas, it won out over those other two, to the point that those other two are actually viewed as obscure footnotes in history.

I'm an investor in a number of biotech companies, partly because of my incredible enthusiasm for the great innovations they will bring.

Two out of every five people on Earth today owe their lives to the higher crop outputs that fertilizer has made possible.

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.