It's not easy to diagnose because depending where the endometrial deposits are, the symptoms can be quite different. It's an unrecognized problem among teenage girls, and it's something that every young woman who has painful menstruation should be aware of... It's a condition that is curable if it's caught early. If not, if it's allowed to run on, it can cause infertility, and it can really, really mess up your life.

Sometimes peace looks like war, you cannot tell them apart.

I think it took me half a page of 'Wolf Hall' to think: 'This is the novel I should have been writing all along.'

To a Brit of my generation, one of the most objectionable things about [Margaret] Thatcher is her falsity. She is a total construct. For one thing, she had a made-over accent.

The weight of the old world is stifling, and trying to shovel its weight off your life is tiring just to think about. The constant shuttling of opinions is tiring, and the shuffling of papers across desks, the chopping of logic and the trimming of attitudes. There must, somewhere, be a simpler, more violent world.

For me, it is about using everything that is there and using the gaps in the record, figuring out why the gaps might be there. And then when you move on to the level of what historians said, laying the interpretations side by side. You also have to look back at the documents and make your own judgments. What the record says and what people say about it. A novelist can fill the gaps in a way that a biographer cannot.

I loved Gore Vidal's Burr. That book gave me courage.