After four knee surgeries and hundreds of shots injected into my knee weekly to alleviate swelling and pain, my body is begging me to stop the pounding. My previous three surgeries were on my right knee. My most recent knee surgery took place this July and was on my left knee.

Of course, the most rewarding part is the "Aha" moment, the excitement of discovery and enjoyment of understanding something new, the feeling of being on top of a hill, and having a clear view. But most of the time, doing mathematics for me is like being on a long hike with no trail and no end in sight! I find discussing mathematics with colleagues of different backgrounds one of the most productive ways of making progress.

As I sit at my table, for days, months, years, slowly adding new words to the empty page, I feel as if I am creating a new world, as if I am bringing into being that other person inside me, in the same way someone might build a bridge or a dome, stone by stone. The stones we writers use are words. As we hold them in our hands, sensing the ways in which each of them is connected to the others, looking at them sometimes from afar, sometimes almost caressing them with our fingers and the tips of our pens, weighing them, moving them around, year in and year out, patiently and hopefully, we create new worlds. The writer’s secret is not inspiration – for it is never clear where it comes from – it is his stubbornness, his patience. That lovely Turkish saying – to dig a well with a needle – seems to me to have been said with writers in mind.

On the best days, I stop pleading, stop bargaining and watch-checking and fall into a rhythm so satisfying that I simply forget I’m working. So much of my writing day feels like well-digging. Sometimes I dig 200ft down before coming back up, dry. Every day I search for water.

Like Joel McCrea’s character at the end of the movie Ride the High Country. (He says something about “entering his house justified,” sits up to take a last look at the scenery, then rolls contentedly out of the frame.) Or like Bill Nighy’s character at the end of our film Living.

I always dreamt of having a second stomach I could carry around in a bag, which I could attach to my real stomach when I sat down in restaurants. That way, I could eat a huge amount, never gaining weight.

Sitting down to a leisurely conversation in an English tearoom with my wife, a friend, or even an interesting stranger. Good cake is essential.

The urge to be unpleasant to waitstaff in restaurants.

Actually, I had done what I thought was more or less a finished version of The Remains of the Day , but the very buttoned-up narrator, the butler — in that earlier version, he doesn’t quite come through confessing his true emotions. He maintains his front a little bit more effectively than he does in the final version. What made me change my mind was that, between that penultimate version and the final version I handed in, I listened to a song by Tom Waits — another great singer-songwriter, remarkable artist. And this is the power of that art form: it’s performance as well as the actual writing.

I always suspected that she was the biggest influence on me. It seems unlikely, but I always suspected that. I used to say that in interviews, and people would think I was just being smart and evasive. But I reread Jane Eyre recently, and also Villette , her other great novel. I just came across episode after episode where I thought “Oh my goodness, I just ripped that off from this book!” Perhaps you wouldn’t recognize it, but I did. Certain kinds of techniques, certain moments when you understand that the narrator is crying, not because she tells you, but because somebody watching her makes a remark. All these little things that I thought, “Oh, I used that in that book,” or “Oh, that trick.” I think Charlotte Brontë had an enormous influence on me, and I think it’s something to do with that use of first-person and the evasiveness, the indirectness, of her first-person narrative. I mean this phrase, “the unreliable narrator,” has become very popular in creative writing. So it’s not quite that, but a very subtle use of the relationship between the writer and the book and the reader — something I tuned in on, I homed in on instantly, when I started to read Charlotte Brontë. But I’ll tell you, my favorite author — novelist — is somebody who you probably wouldn’t think had any relationship to me, which is Dostoyevsky. I’ve always loved Dostoyevsky, ever since I first read him. I think he’s one of the reasons I started to read, you know, when I read Crime and Punishment when I was about 17 or 18. Dostoyevsky and Chekhov for me remain like two poles in terms of a way to approach things. I love the messiness of Dostoyevsky, the improvised — I mean a lot of it is a mess, but I like the way that strange, unexpected things have obviously come tumbling out of him that he didn’t want to necessarily have come tumbling out. On the other hand, you know, Chekhov, another great Russian writer, exemplifies the calm, controlled, very carefully structured, understated kind of work. I aspire to them both. They’re two of my great heroes.