I think if somebody is so set in their ways about what they feel about something - and you get this a lot in academia, of course, and also different sorts of journalism too - you're going to sweep under the carpet the facts that don't suit your thesis. And I think that happens quite a lot in the courtroom, for instance.

I am the neurological opposite of a psychopath, in that I feel anxious almost all the time. It must be great to not constantly feel like you’ve got someone living inside your face, shooting you with a mini Taser.

‎I have panicked unnecessarily in all four corners of the globe.

There's definitely evidence that capitalism at its most ruthless rewards psychopathic behavior. When you look at the worst corners of the American health insurance industry or the sub-prime banking market, it really feels like the more psychopathically someone behaves, the more it's rewarded.

I have thought sometimes that the sanest people, the people who are just very balanced, very happy, are probably lower achieving than other people. My kind of irrationality happens to be fear or anxiety.

My worryingly paradoxical thought process could be summarized thus: Thank God I don't believe in the secret rulers of the world. Imagine what the secret rulers of the world might do to me if I did!

When I asked Robert Spitzer about the possibility that he'd inadvertently created a world in which ordinary behaviours were being labelled mental disorders, he fell silent. I waited for him to answer. But the silence lasted three minutes. Finally he said, 'I don't know.