A few years ago, the city council of Monza, Italy, barred pet owners from keeping goldfish in curved bowls... saying that it is cruel to keep a fish in a bowl with curved sides because, gazing out, the fish would have a distorted view of reality. But how do we know we have the true, undistorted picture of reality?

I believe that the long-term future of the human race must be space and that it represents an important life insurance for our future survival, as it could prevent the disappearance of humanity by colonizing other planets.

Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it.

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

We are only the temporary custodians of the particles which we are made of. They will go on to lead a future existence in the enormous universe that made them

It is a waste of time to be angry about my disability. One has to get on with life and I haven't done badly. People won't have time for you if you are always angry or complaining.

If one is physically disabled, one cannot afford to be psychologically disabled as well.