Never take your eyes off the cash flow because it's the life blood of business.

Talent comes from experience and failure

A successful business must have a sound knowledge of its market and work on how its product or service will be different, stand out and improve people's lives. If you can ensure it responds to a real need in the market place, your business can punch well above its weight.

Colleagues should take care of each other, have fun, celebrate success, learn by failure, look for reasons to praise not to criticize, communicate freely and respect each other.

Early on in your career, find someone better than yourself to run the business on a day-to-day basis. Remove yourself, maybe even from the building, and from the nitty-gritty. That way, you're going to be able to see the bigger picture and think of new areas to go into.

One of the best bits of advice I can give is, early on, when you're building a new business, try to find somebody to run it on a day-to-day basis to free yourself up to look at the bigger picture.

Space travel will be like every other business. There will be competitors. . . . Thirty months from now, I'm confident we'll be flying people into space.