[s]he was a compulsive pessimist, always looking for the soft brown spot in the fruit, pressing so hard she created it.

Over the centuries, and even today, the Bible and Christian theology have helped justify the Crusades, slavery, violence against gays, and the murder of doctors who perform abortions. The words themselves are latent, inert, harmless - until they aren't.

Fiction just has a lot more room for ambivalence and internal conflict, contradiction, and for me that sums up so much of what people felt after 9/11 - confusion even. And I think that's hard to capture in journalism.

Work less than you think you should. It took me a while to realise there was a point each day when my creativity ran out and I was just producing words - usually lousy ones - for their own sake. And nap: it helps to refresh the brain, at least mine.

I read Claire Messud's 'The Emperor's Children,' I read Joseph O'Neill's 'Netherland' - but to me, they're not 9/11 novels. In 'The Emperor's Children,' 9/11 felt to me like a piece of the plot; the novel wasn't wrestling with what 9/11 meant. And 'Netherland' felt the same way. I liked both books a lot but I don't see them as 9/11 novels.

So the premise of 'The Submission' is that there's an anonymous competition to design a 9/11 memorial and it's won by an American Muslim, an architect born and raised in Virginia, and his name is Mohammad Khan.

I found 'The Twin' sitting on a coffee table at a writers' colony in 2009. It carried praise from J.M. Coetzee. That seemed ample justification for using it to avoid my own writing. I finished it - weeping - a day later, and I've been puzzling over its powerful hold on me ever since.