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.

There's nothing wrong with things taking time.

I've fought court battles over my inventions before.

You need a stubborn belief in an idea in order to see it realised.

[M]anufacturing, science and engineering are ... incredibly creative. I'd venture to say more so than creative advertising agencies and things that are known as the creative industries.

The key to success is failure… Success is made of 99 percent failure.

The media thinks that you have to make science sexy and concentrate on themes such as rivalry and the human issues.