Super-ambitious goals tend to be unifying and energizing to people; but only if they believe there's a chance of success.

Technology is a resource-liberating force!

The price to generate a megawatt or a gigawatt of energy is coming down year after year. We're learning how to print it, make it more efficient.

If you stop and you think about everything we hold of value on this planet, metal, minerals, energy, real estate, the things that nations fight wars over. These things are in near infinite quantities out there.

If the risk is fully aligned with your purpose and mission, then it's worth considering.

You've got to choose your horse ahead of time. So, if you're interested in water technology, energy technology, you get to choose between the three or four companies that you have insight into. And you have to make a bet on them before they prove anything out.

I ended up realizing that NASA was unlikely to get me into space, or get me to the moon or beyond, and I needed some other way to drive this.