Everyone has ideas. They may be too busy or lack the confidence or technical ability to carry them out. But I want to carry them out. It is a matter of getting up and doing it.

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

If you invent something, you're doing a creative act. It's like writing a novel or composing music. You put your heart and soul into it, and money. It's years of your life, it's your house remortgaged, huge emotional investment and financial investment.

Beauty can come in strange forms.

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.

Engineering is treated with disdain, on the whole. It's considered to be rather boring and irrelevant, yet neither of those is true.

I was frustrated as a child when I had to use a vacuum. It had a screaming noise and the smell of stale dog and a lack of performance.