My most important rule is one that sums up the 10: if it sounds like writing, I rewrite it.

Perhaps one character trait which does help is the ability to focus, and perhaps to be a little stubborn. If I learned something in class that I only partly understood, I wasn't satisfied until I was able to work the whole thing out; it would bother me that the explanation wasn't clicking together like it should. So I'd often spend a lot of time on very simple things until I could understand them backwards and forwards, which really helps when one then moves on to more advanced parts of the subject.

I love training. It's not just about the competing. I had an amount of natural talent – you need that to go so far – but, actually, what I had, I think, is an ability to make myself work hard, to do the things I didn't like doing, to do the things that I wasn't so good at.

But if I’ve come up with any kind of mantra for myself it’s to try and put myself into a state of imaginative play.

Yes. I didn't want to be a writer, but I became one. And now I have many readers, in many countries. I think that's a miracle. So I think I have to be humble regarding this ability. I'm proud of it and I enjoy it, and it is strange to say it this way, but I respect it.

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.

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.