A business can be started with very little money.

I will work day and night to avoid failure, but if I can't, I'll pick myself up the next day. The most important thing for entrepreneurs is not to be put off by failure.

I am convinced that companies should put staff first, customers second and shareholders third - ultimately that's in the best interest of customers and shareholders.

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

My biggest motivation? Just to keep challenging myself. I see life almost like one long University education that I never had - everyday I'm learning something new.

Learn to use your brain power. Critical thinking is the key to creative problem solving in business.

Actually, we did a fun April Fools' thing with Google a couple of years ago, which we called Virgle. And we looked for volunteers to go on a one-way trip to Mars.