No one will pay you to solve a non-problem.

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

It doesn't matter what your probability of failure is. If there's a 90% chance of failure, there's a 10% chance of changing the world.

The right way to build a company is to experiment in lots of small ways, so that you have plenty of room to make mistakes and change strategies.

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

I'm a fiscal hawk. I vote against all taxes, but I do believe the environment, and climate change, is a bigger issue than fiscal deficits are as a risk to the nation.

For electric power generation, we are very optimistic about solar-thermal technology, and we’re intrigued by the potential of enhanced geothermal energy to replace coal-based power generation. Traditional carbon capture and sequestration-based coal power generation is somewhat unlikely to be competitive.