Real science can be far stranger than science fiction and much more satisfying.

The boundary condition of the universe is that it has no boundary.

I don't believe that the ultimate theory will come by steady work along existing lines. We need something new. We can't predict what that will be or when we will find it because if we knew that, we would have found it already!

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

We are all different. There is no such thing as a standard or run-of-the-mill human being, but we share the same human spirit.

Only time - whatever that may be - will tell.

I wouldnt be here today if it were not for the NHS, I have received a large amount of high-quality treatment without which I would not have survived.