Everything is a self-portrait. A diary. Your whole drug history’s in a strand of your hair. Your fingernails. The forensic details. The lining of your stomach is a document. The calluses on your hand tell all your secrets. Your teeth give you away. Your accent. The wrinkles around your mouth and eyes. Everything you do shows your hand.

The world of American politics is more contentious than it has ever been in my lifetime.

There are worse things than finding your wife and child dead. You can watch the world do it. You can watch your wife get old and bored. You can watch your kids discover everything in the world you've tried to save them from. Drugs, divorce, conformity, disease. All the nice clean books, music, television. Distraction.

When did the future switch from being a promise to a threat?

The first step - especially for young people with energy and drive and talent, but not money - the first step to controlling your world is to control your culture. To model and demonstrate the kind of world you demand to live in. To write the books. Make the music. Shoot the films. Paint the art.

Are these things really better than the things I already have? Or am I just trained to be dissatisfied with what I have now?

People would ask me to autograph their bodies and then the next time I'd see them on tour they'd have my autograph tattooed. I decided I wouldn't write on people anymore, but I'd give them arms and legs and if they wanted those autographed I'd do that.