The balloons only have one life and the only way of finding out whether they work is to attempt to fly around the world.

Happiness is the secret ingredient for successful businesses. If you have a happy company it will be invincible.

Remain focused on fulfilling your business mission. Never allow adversity divert your attention and efforts.

The best advice I could give anyone is to spend your time working on whatever you are passionate about in life.

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.

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.

Having a good network can be invaluable. It opens doors for you and allows you to enter into opportunities that are beneficial to your business. In this sense, 'who you know' is undoubtedly important, but to me 'what you know' is more important because once an opportunity shows itself, it is up to you to make the most of it, and this is down to your knowledge and skill.