It's quite widespread in rock culture, that mythology of the shooting star. I'd rather be the North star. As bob (Dylan) says, you can navigate by it.

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.

The great music for so many artists - the Beatles, the Rolling Stones - was always at the moment when they were closest to pop. It would be easy for U2 to go off and have a concept album, but I want us to stay in the pop fray.

The less you know, the more you believe.

I truly believe that when the history books are written, our age will be remembered for three things: the war on terror, the digital revolution, and what we did - or did not do - to put the fire out in Africa. History, like God, is watching what we do.

You see, Africa makes a fool of our idea of justice. It makes a farce of our idea of equality. It mocks our pieties. It doubts our concern. It questions our commitment. Because there is no way we can look at what's happening in Africa, and if we're honest, conclude that it would ever be allowed to happen anywhere else.

You see, idealism detached from action is just a dream. But idealism allied with pragmatism, with rolling up your sleeves and making the world bend a bit, is very exciting. It's very real. It's very strong.