The computer dictates how you do something, whereas with a pencil you're totally free.

Fear is always a good motivator.

Britain's great strength is its innovative, design and engineering natural ability and we're not using it.

When I started off, I was working in a shed behind my house. All I had was a drill, an electric drill. That was the only machine I had.

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

Success is made of 99% failure.

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.