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.

Every morning, Monday to Friday, I get up at 7am and make my wife breakfast in bed.

If I’m in California, and the waves are good, I’m surfing by 7 a.m. If the surfing is good, I might stay out all day. I like being able to see the horizon. When I am sitting in the water facing Antarctica, waiting for a wave, it opens up my mind.

I begin each morning, I do every single morning exactly the same way, I begin each morning by doing my highest priority work first. I have a very clear priority list and I start from the highest priority work first. Before I even get to work, my day is already a success. I've already completed my most important work and can dedicate my day to helping others.

Unfortunately I have too many projects going. Two of them, fortunately, are already in the editors’ hands. One is this book on the birds of Northern Melanesia I’m doing with Jared Diamond, and that deals with speciation and particular ecology, biogeographic dispersal and all the other questions.

There's only one thing where I… if I had the opportunity to live my life over again where I probably would make a change.…I think if I had shortened that period and had earlier begun to work on basic evolutionary theory on history of biology and particularly on the philosophy of biology, I could have achieved some things which now I will never be able to achieve because at age 93, one knows that one doesn't live forever.

And I still remember, and that's the honest truth, as we were leaving his office, he said, 'Well, I give you a fifty-fifty chance to come out alive'. That was Malaita at that time, and... and you can check in the books and will find that that was the... that's why nobody had ever collected there. Well, we made the first collection.

Birds are still very much my hobby

One of the answers is that very often I see a statement made by somebody which clearly to me is wrong, and then I work out what is the real right answer, and this happens to me very often.

Primarily to show, and you will think that this doesn't need showing, but lots of people would disagree with you. To show that biology is an autonomous science and should not be mixed up with physics. That's my message.