I believe cellulosic fuels, biofuels made from nonfood crops are the only solution that will make a difference.

The world is hung up on food-based biofuels. Not only are they the wrong thing, they're the uneconomic thing.

The willingness to fail gives us the freedom to succeed.

There are parts of the country in America, in the Midwest, where wind is a big resource, and we should absolutely use it. But to try and apply it nationally doesn't make sense. There are technologies that will work that are appropriate to certain regions.

Oil replacements and then efficiencies in engines and housing and the way we build houses is a very interesting market.

The only way you multiply resources is with technology. To really affect poverty, energy, health, education, or anything else - there is no other way.

In my view, it’s irreverence, foolish confidence and naivety combined with persistence, open mindedness and a continual ability to learn that created Facebook, Google, Yahoo, eBay, Microsoft, Apple, Juniper, AOL, Sun Microsystems and others.