Happiness doesn't come from making a fortune and owning lots of possessions. 'Stuff' doesn't bring happiness. Family, friends, good health and the satisfaction that comes from making a positive difference are what really matter.

I set up this magazine called Student when I was 16, and I didn't do it to make money - I did it because I wanted to edit a magazine. There wasn't a national magazine run by students, for students. I didn't like the way I was being taught at school. I didn't like what was going on in the world, and I wanted to put it right.

We always enter markets where the leaders are not doing a great job, so we can go in and disrupt them by offering better quality services.

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

There is no planet B. We have to take care of the one we have

I just love every minute of my life. I love the variety. Every minute of every day I'm meeting fascinating new people, learning and working with wonderful teams of people creating wonderful things.

If you get into entrepreneurshi p driven by profit, you are a lot more likely to fail. The entrepreneurs who succeed usually want to make a difference to people’s lives, not just their own bank balances. The desire to change things for the better is the motivation for taking risks and pursuing seemingly impossible business ideas.