I truly believe that capitalism was created to help people live better lives, but sadly over the years it has lost its way a bit. The short-term focus on profit has driven most businesses to forget about the important long-term role they have in taking care of people and the planet.

I am prepared to try anything once.

I myself have benefited from many mentors throughout my life.

Throughout my business life I have always tried to keep on top of costs and protect the downside risk as much possible. The Virgin Group has survived only because we have always kept tight control of our cash. But, likewise, I also know that sometimes it is essential to break these rules and spend lavishly.

All you have in life is your reputation: you may be very rich, but if you lose your good name, then you'll never be happy. The thought will always lurk at the back of your mind that people don't trust you.

My definition of success? The more you are actively and practically engaged, the more successful you will feel.

So unlike having to convert, you know, all the cars' or all the lorries' petrol stations, once you've actually got the clean fuels, it's relatively easy to, you know, get it to the airplanes.