Probably my family in terms of kids I've got, my mum and dad, the whole network of family. I'm really close with my aunties, uncles, nans, grandads, trying to spend as much time together as possible, so I'd say that's one thing I'm really proud of, that I have a loving family.

I was really proud that it was my stars that had convinced the prize committee that there was good physics in astrophysics.

I think three things. One is the great advances in auto safety. I mean, there are tens of thousands of people being saved every year because cars are safer, and millions of people over a decade, injuries prevented. I think that’s a good example of the need to make technology more humane. We may benefit from a lot of technologies, but they exact a cost. Emphysema, cancer, soil contamination, contaminated water, death and injury on the highway. We’ve got to put more effort on making them more humane.

This may sound like a cliché, but I’ll put it this way. The proudest thing in my life is that my children came home. The proudest moment of my presidency, domestically, was when I signed a piece of civil rights legislation known as the ADA, doing something for the disabled. A massive piece of civil rights legislation that put disabled people, 50 million of them, into the mainstream, or at least removed legal obstacles to their being in the mainstream.

I want my readers to laugh sometimes. Many readers in Japan read my books on the train while commuting. The average salaryman spends two hours a day commuting and he spends those hours reading. That’s why my big books are printed in two volumes: They would be too heavy in one. Some people write me letters, complaining that they laugh when they read my books on the train! It’s very embarrassing for them. Those are the letters I like most. I know they are laughing, reading my books; that’s good. I like to make people laugh every ten pages.

When I’m in writing mode for a novel, I get up at four a.m. and work for five to six hours. In the afternoon, I run for ten kilometers or swim for fifteen hundred meters (or do both), then I read a bit and listen to some music. I go to bed at nine p.m. I keep to this routine every day without variation. The repetition itself becomes the important thing; it’s a form of mesmerism. I mesmerize myself to reach a deeper state of mind. But to hold to such repetition for so long—six months to a year—requires a good amount of mental and physical strength. In that sense, writing a long novel is like survival training. Physical strength is as necessary as artistic sensitivity.

I myself, as I’m writing, don’t know who did it. The readers and I are on the same ground. When I start to write a story, I don’t know the conclusion at all and I don’t know what’s going to happen next. If there is a murder case as the first thing, I don’t know who the killer is. I write the book because I would like to find out. If I know who the killer is, there’s no purpose to writing the story.