In my heart, I'm just a kid from the council houses. I can remember the old cottage and my dad coming round with the tin bath. I'm not a rich man.

I think when people mean that Discworld books have become darker they really mean the series is growing up. In 'The Colour of Magic' most of the city is set alight. It's a joke, in much the same way that the Earth is destroyed almost at the start of Douglas Adams's 'The Hitchhikers Guide to the Galaxy.'

I grow as many of our vegetables as I can, because my granddad was a professional gardener, and it's in the blood.

I am certain no one sets out to be cruel, but our treatment of the elderly ill seems to have no philosophy to it. As a society, we should establish whether we have a policy of life at any cost.

In life there are no problems, that is, objective and external choices; there is only the life which we do not resolve as a problem but which we live as an experience, whatever the final result may be.

There used to be a huge hole in my life that I wrote many albums about. I didn't realise it was a wife-and-daughter-shaped hole. They've plugged that gap. Everything I do, I do for them now. When daddy goes to work, it's daddy going to work, not Rob going to work. I feel like there's a purpose to everything.

There's one must in life: whatever job you do, wherever you are, whatever age you have, how much experience you have, you have to keep performing at the top level otherwise someone else will take your place.

I'd heard about rehab, where you send people with drug problems, but I soon learned that there's no standard definition of it; instead it's a generic word for a wide variety of treatments, including some that are outrageous. Past-life therapy? Exorcism?