I get to hear the really good or the really bad things in the press, but I don't read it. I can afford to say that because public opinion does not drive U2's audience.

I accept the Old Testament as more of an action movie: blood, car chases, evacuations, a lot of special effects, seas dividing, mass murder, adultery. The children of God are running amok, wayward. Maybe that's why they're so relatable.

Hanging out with politicians and corporations is very unhip work. But I think that the U2 audience have turned out to be incredibly subtle in their understanding.

You don't become an 'artist' unless you've got something missing somewhere. Blaise Pascal called it a God-shaped hole. Everyone's got one but some are blacker and wider than others. It's a feeling of being abandoned,cut adrift in space and time-sometimes following the loss of a loved one. You can never completely fill that hole-you can try with songs,family,faith and by living a full life...but when things are silent, you can still hear the hissing of what's missing.

There was a moment when Prince did rock & roll with a sponge-y seductive sound. I think that's what was in our head for 'Get On Your Boots.' But actually, the song is much more punk rock.

Because you know when you first become famous, you start walking a little different because people are staring at you.

It's much easier to be successful than it is to be relevant. The tricks won't keep you relevant. Tricks might keep you popular for a while, but in all honesty, I don't know how U2 will stay relevant. I know we've got a future. I know we can fill stadiums. And yet with every record, I think, 'Is this it? Are we still relevant?'