Failure is so much more interesting because you learn from it. That's what we should be teaching children at school, that being successful the first time, there's nothing in it. There's no interest, you learn nothing actually.

I think people are realizing that engineering and science are extremely good degrees to get and you'll be very highly paid once you've got them.

I've obviously used fans - I wouldn't say all my life, because we couldn't afford them when I was young, but from my 20s and onwards we've had to use fans. And I've always loathed them. Everything about them. The way you adjust them, getting them at the angle you want. Carrying them. Cleaning them. The danger of putting your finger in them.

Children want the challenge of difficult tasks - just look how much better they are than their parents on a computer.

We need to encourage investors to invest in high-technology startups.

When I started off, I was working in a shed behind my house. All I had was a drill, an electric drill. That was the only machine I had.

Emerging markets are hugely important.