I have had many opportunities to visit universities all over the world in the past 50 years.

Our children were mostly brought up and educated in the Churchill suburb east of Pittsburgh. Each summer, we took them back to England for an extended period.

On my return to Pittsburgh, I resolved to go back to the fundamental problems of electronic structure that I had contemplated abstractly many years earlier.

Like many other Laureates, I have benefit immeasurably from the love and support of my wife and children.

I started writing when I was 11. In my late teens, I was writing short stories of every conceivable type and sent them to everything from 'Future Science Fiction' to 'The Sewanee Review.'

I think the least important thing about science fiction for me is its predictive capacity. Its record for being accurately predictive is really, really poor! If you look at the whole history of science fiction, what people have said is going to happen, what writers have said is going to happen, and what actually happened - it's terrible.

In a sense, fantasy is a freer play of the imagination. You can achieve exactly the situation you want with less groundwork, less of a need to fill in all of the background. For science fiction, I would use a lot of sources to set up, for instance, what a being from another planet would be like.

A report released by the Partnership for a New American Economy and the Partnership for New York City predicts that by 2018, there will be 800,000 science, technology, engineering, and mathematics (STEM) jobs in the United States that require a master's degree or higher - and only around 550,000 American-graduates with this training.