So here is one of my theories on happiness: we cannot know if we have lived a truly happy life until the very end. This view of life and death was reinforced by my close witnessing of the buildup to the death of Philip Gould. Philip was without doubt my closest friend in politics. When he died, I felt like I had lost a limb.

I feel like thanking Paul Dacre every time, because the reason they ask me is because they think I've come through the other end with a pretty good reputation. Loads of people get a bad press but have a good reputation. [David] Beckham - think what he went through. [Bill] Clinton, likewise. You just have to be true to yourself.

In an ideal world, it would not take a film star to get the media focused on mental illness.

Don't accept that you are in crisis just because everyone says you are.

I never met David Kelly, but I knew from what he told other people that this was not his view. The BBC were saying that Tony Blair was making up lies so that he could send young men and women to war, maybe to die. I think that if the BBC had done their jobs professionally, they'd have realised that you couldn't justify what they said. And nothing has emerged since to justify that report.

As Tony [Blair] said in his book, Gordon [Brown] was brilliant and impossible. If he'd just been one of those things, the options are obvious.

I do think it's strange that I get associated with Iraq more than the people who were Foreign Secretary or Defence Secretary. It's because of my closeness to Tony [Blair], which I don't regret at all. I think that was a privilege.