One can't prove that God doesn't exist. But science makes God unnecessary. The laws of physics can explain the universe without the need for a creator.

We explore because we are human and we want to know. I hope that Pluto will help us on that journey.

The meaning in life is not out there but inbetween our ears. In many ways this makes us the lords of creation.

If at first you don't succeed, try management.

My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand.

The concern here is that financial services become a kind of tech-led Wild West.

The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until we have spread the load.