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

So when people ask me if I believe God created the universe, I tell them that the question itself makes no sense. Time didn't exist before the Big Bang, so there is no time for God to make the universe in. It's like asking for directions to the edge of the earth; the earth is a sphere, it doesn't have an edge, so looking for it is a futile exercise.

I thought Eddie Redmayne portrayed me very well... At times I thought he was me.

The progress of the human race in understanding the universe has established a small corner of order in an increasingly disordered universe.

I don't want to write an autobiography because I would become public property with no privacy left.

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.

Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.