We'll not be sending anyone into space before it is safe and the vehicle is well and truly tested.

Don't bother doing something unless you're radically different from the competition.

If you create something that makes a difference in people's lives, you are likely to become a business success as well

The jet stream is a very strong force and pushing a balloon into it is like pushing up against a brick wall, but once we got into it, we found that, remarkably, the balloon went whatever speed the wind went.

Entrepreneursh ip is a great leveller, since having the benefit of a wealthy background or a generous investor isn't always an advantage. The wonderful thing is that money is not the sole currency when it comes to starting a business; drive, determination, passion and hard work are all free and more valuable than a pot of cash.

I decided there must be room for another airline when I spent two days trying to get through to People Express.

There are no quick wins in business - it takes years to become an overnight success.