Not thinking it's possible is a failure of imagination.

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

Certain food-based biofuels like biodiesel have always been a bad idea. Others like corn ethanol have served a useful purpose and essentially are obsoleting themselves.

There's no doubt in my mind over the next 25 years how we drive, how we build our houses, how we fly, how we build our buildings, will all change.

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

If everyone played it safe, we wouldn't get anywhere.

The first rule of venture capitalism is hands-on experience. You have to get your hands dirty.