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

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.

Cordless vacuums are designed for quick jobs, but you need enough power to do the job; you don't want the power waning over time.

My interest in film is sort of catholic - apart from science fiction and horror movies, I'll watch almost everything.

Arbitrary benchmarks cheat kids out of a fulfilling education.

If you want to do something different, you’re going to come up against a lot of naysayers.

There is no such thing as a quantum leap. There is only dogged persistence - and in the end you make it look like a quantum leap.