I like to take chances on people, and whenever possible, promote from within - it sends a great message to everyone in the company when someone demonstrates a passion for the job and leadership skills at every step along the way and is rewarded with a leadership role.

I've had many challenges - every entrepreneur does - it's the nature of the beast.

We will be producing supersonic planes which will go far, far faster than Concordes. New York to Tokyo could be less than an hour. You could be traveling at 19,000 miles an hour orbitally.

I can honestly say that I have never gone into any business purely to make money. If that is the sole motive then I believe you are better off not doing it. A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

No matter how big you are, details count!

Entrepreneurial business favours the open mind. It favours people whose optimism drives them to prepare for many possible futures, pretty much purely for the joy of doing so.

I just think you need to spice up life every now and then with a bit of adventure and excitement.