A lot of people give up when the world seems to be against them, but that's the point when you should push a little harder. I use the analogy of running a race. It seems as though you can’t carry on, but if you just get through the pain barrier, you'll see the end and be okay. Often, just around the corner is where the solution will happen.

If you didn't have patents, no one would bother to spend money on research and development. But with patents, if someone has a good idea and a competitor can't copy it, then that competitor will have to think of their own way of doing it. So then, instead of just one innovator, you have two or three people trying to do something in a new way.

I've fought court battles over my inventions before.

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

I learned that the moment you want to slow down is the moment you should accelerate.

Engineering undergraduates should not be charged fees. They should receive grants, not student loans, and the government will get the money back long-term from increased exports.

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.