If you believe that the developing world deserves the same standards of living that we do in the developed world, then to achieve that, they need resources. They need the metals and the minerals to build the industries and the buildings and so forth, and the energy.

Many have built their careers buttressing the status quo, reinforcing what theyve already accomplished, and resisting the radical thinking that can topple their legacy - not exactly the attitude you want when trying to drive innovation forward.

Imagine a world of nine billion people with clean water, nutritious food, affordable housing, personalized education, top-tier medical care, and nonpolluting, ubiquitous energy. Building this better world is humanity's grandest challenge.

In the space business, space had gotten very much to be the aerospace industry. This is something that governments only do and it's where the Boeings and the Lockheed's and the Northrop's and so forth. And there's no way these small companies could do it.

We are not going to stop here on planet Earth. We're going to move out to other planetary bodies.

I think people are dreaming big because they have the tools to dream big. I hope that people are dreaming big because it makes them feel good about their lives.

A Masai warrior on a cellphone in the middle of Kenya has better mobile comm than President Reagan did 25 years ago.