I can't disguise myself with a wig and dark glasses - the wheelchair gives me away.

The downside of my celebrity is that I cannot go anywhere in the world without being recognized. It is not enough for me to wear dark sunglasses and a wig. The wheelchair gives me away.

Sometimes I wonder if I'm as famous for my wheelchair and disabilities as I am for my discoveries.

My ideal role would be a baddie in a James Bond film. I think the wheelchair and the computer voice would fit the part.

Work gives you meaning and purpose and life is empty without it.

I don't care much for equations myself. This is partly because it is difficult for me to write them down, but mainly because I don't have an intuitive feeling for equations.