Everything you do leaves traces, doesn't it. The life you've lived is written all over you, for those who can read.

In most sports, your brain and your body will cooperate... But in rock climbing, it is the other way around. Your brain doesn't see the point in climbing upwards. Your brain will tell you to keep as low as possible, to cling to the wall and not get any higher. You have to have your brain persuading your body to do the right movements.

With regard to power, women don't have the vanity men have. They don't need to make power visible, they only want the power to give them the other things they want. Security. Food. Enjoyment. Revenge. Peace. They are rational, power-seeking planners, who think beyond the battle, beyond the victory celebrations. And because they have an inborn capacity to see weakness in their victims, they know instinctively when and how to strike. And when to stop. You can't learn that.

When you're an established name, you know that a children's book will have a pretty good chance of getting picked up. Like Madonna. It's not that I had this great idea. Actually, in my case, it was a great idea.

My father grew up in Brooklyn, N.Y., with my grandparents. In Norwegian my name is pronounced 'Yoo' but my father used to call me 'Joe.'

I feel more related to some American crime writers than I do to Stieg Larsson.

I don't have any writing routine. Sometimes I go to my local coffee shop and I write there for some hours. Apart from that, I am traveling most of the time. I write in airports, trains, hotel rooms... I can write anywhere.