Every success story is a tale of constant adaption, revision and change.

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.

A generation ago, the image was that you had to trample everyone else down to succeed; but I don't believe that makes good business sense.

And you know, I've had great fun turning quite a lot of different industries on their head and making sure those industries will never be the same again, because Virgin went in and took them on.

Drive, determination, passion and hard work are all free and more valuable than a pot of cash.

I always tell other people to protect against the downside, and not risk roughing on new ventures, but I never stuck to that rule myself.

A good leader leads from the front. Don't get stuck in the office. Get out, meet people and listen to their stories.