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.

Listen to the customer's complaint and act fast.

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

When something doesn't go exactly to plan, money is tight or a business is struggling - see it as a challenge rather than a failure. Look outside the box and try and find a solution - you'll be surprised how many great opportunities and possibilities arise when things look bad. You've just got to open your mind and not be afraid of sticking your neck out!

Every aspect of life is magnificent and wonderful. It's so important to keep fit and healthy.

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

One of the best bits of advice I can give is, early on, when you're building a new business, try to find somebody to run it on a day-to-day basis to free yourself up to look at the bigger picture.