Hire inexperience. This year we plan to hire 200 engineers - half of whom are recent grads. Young people are not burdened by years of experience. They haven't learned - or been told - what is right or wrong. With engineering, there is no tried and tested path. You try, and fail, and fix, and fail again.

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.

Everybody recognizes that if you can make very efficient electric motors, you can make a quantum leap forward.

In the digital age of "overnight" success stories such as Facebook, the hard slog is easily overlooked.

In order to fix it, you need a passionate anger about something that doesn't work well.

Anyone developing new products and new technology needs one characteristic above all else: hope.

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