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

We've definitely cracked the technology. Now we're just trying to be able to produce the amount of fuels that we need to satisfy our own needs and then other people's needs.

Kitesurfing is one of the greatest sports in the world. I highly recommend this to anyone who has access to the ocean. There is nothing more freeing than being out there and kitesurfing. When my schedule permits, it's the first thing I do in the morning, before I have breakfast. Tennis is also fun, especially against someone far better at the sport than I am.

You've got one go in life, so make the most of it.

You get the idea. Every business, like a painting, operates according to its own rules. There are many ways to run a successful company. What works once may never work again. What everyone tells you never to do may just work, once. There are no rules. You don't learn to walk by following rules. You learn by doing, and by falling over, and it's because you fall over that you learn to save yourself from falling over. It's the greatest thrill in the world and it runs away screaming at the first sight of bullet points.

Be the best at what you do

Kite surfing is a great way of keeping fit. Kiting is great because you're bouncing over the waves and you're surfing the waves. I do quite long kite surfs-50 miles in a day.