If you run your business fairly; if you treat people well; if you try to move your business into areas that are making a real positive difference to other peoples lives; I think you'll A. have much pleasant life, but B. I think you'll have a much more successful business.

Ideally, since 80 percent of your life is spent working, you should start your business around something that is a passion of yours

Conflicts often stem from a couple of leaders on both sides that are badly brought up. They'd rather go to war than compromise. And in business, you're competing with other companies all the time, but you don't end up going to war with each other.

I was fortunate enough, after many visits to many wonderful, weird people to come across Burt Rutan, who is a genius in the Mojave Desert. And SpaceShipOne was born and had three flights into space that won something called the X Prize. And from there, we're building SpaceShipTwo, which is ... a beautiful spaceship that is very, very, very nearly completed and will be ready from about next Christmas onwards to start taking people into space.

Running a business is making a difference in people's lives

Age isn't as important so long as you are surrounded by people you love, doing things you passionately believe in.

Breaking the rules and challenging convention is in the DNA of every successful entrepreneur. Doing things differently and solving problems with new, innovative and fresh approaches are the very reason many start-ups are able to compete and sometimes outpace the established market leaders.