Engineers are behind the cars we drive, the pills we pop and the way we power our homes.

Life is a mountain of solvable problems and I enjoy that.

When decisions on nuclear power stations and runways are delayed and the government dilly-dallies, people think they aren't important.

So I think the winners in recession are the people who produce new technology that does things better, which people really want.

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

Success is made of 99% failure.

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.