I entered the literary world, really, from outside. My entire background has been in sciences; I was a biology major in college, then went to medical school. I've never had any formal training in writing. So what I know about writing, I know from my own instincts, and whatever the narrative voice is in my own head.

When I was in Afghanistan in 2007, I went from village to village where refugees had returned, and they were living out in the open under tents, sometimes completely exposed to the environment. And they were homeless, which meant they would lose children in the winter to the cold and in the summers in the extreme heat. It's extremely humiliating for them to be homeless, culturally it's very shameful.

I don't listen to music when I write - I find it distracting.

Laila remembered Mammy telling Babi once that she had married a man who had no convictions. Mammy didn't understand. She didn't understand that if she looked into a mirror, she would find the one unfailing conviction of his life looking right back at her.

It's hard when you make a film from a book that so many people love, because there's no way to get the entire story into a two-hour movie. But I was pleased with the reaction [for Kite Runner].

I thought about you all the time. I used to pray that you’d live to be a hundred years old. I didn’t know. I didn’t know that you were ashamed of me.

Like a compass needle that points north, a man's accusing finger always finds a woman. Always.