I am always working on the go.

Learn to live on the edge.

Bakers bake bread, accountants manage accounts and entrepreneurs turn ideas into reality.

There are millions of people out there who would love to become astronauts, who'd love to go to space - they'd love to look back at this wonderful world from space. That will be the engine that will enable us then to develop spaceships to transport people around the world at tremendous speeds in an environmentally friendly way.

The best way forward is to give more people everywhere greater power to build their own destinies.

I read a fair amount [of science fiction], and you know it was certainly inspirational. I have to pinch myself to think that we might be able to make some of [what I've read in science fiction books] come true.

Failing can provide invaluable lessons and making mistakes and experiencing setbacks is part of the DNA of every successful entrepreneur.