I've probably failed more often than anybody else in Silicon Valley. Those don't matter. I don't remember the failures. You remember the big successes.

Will biofuel usage require land? Absolutely, but we think the ability to use winter cover crops, degraded land, as well as using sources such as organic waste, sewage, and forest waste means that actual land usage will be limited. Just these sources can replace most of our imported oil by 2030 without touching new land.

We don't need a fuel that's cleaner, we need a fuel that happens to be cleaner, but is half the price of oil.

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.

Electric cars are coal-powered cars. Their carbon emissions can be worse than gasoline-powered cars.

I'm not a political person. I'm a techie nerd, and I enjoy the techie part. I mean, all my life, I've loved great technology.

Future is not extrapolation of past