Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention.

If the total energy of the universe must always remain zero, and it costs energy to create a body, how can a whole universe be created from nothing?

Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'

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

We've created life in our own image.

I think the human race has no future if it doesn't go into space.

It should soon be possible dramatically to increase the intelligence and life span of a few individuals. They and their offspring could become a master race. Evolution pays no regard to social justice. It was not fair on the Neanderthals they were replaced by modern humans.