Like getting into a bleeding competition with a blood bank.

Failing can provide invaluable lessons and making mistakes and experiencing setbacks is part of the DNA of every successful entrepreneur.

If a chairman of a company visits Seattle, that chairman should take all the staff out in the evening and have a few drinks together, talk together and party together and not be embarrassed about the staff seeing the weaker side of you.

We have the enormous opportunity in our hands to make a positive difference for business, people, and the planet.

I may be a businessman in that I set up and run companies for profit, but when I try to plan ahead and dream up new products and new companies, I'm an idealist.

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.

With all my employees, I listen to them, trust in them, believe in them, respect them and let them have a go! I never believe I know better than they do and have been fortunate over the years to build up a very strong management team whom I can trust and take advice from.