Facts, like people, want to be free - and when they're free, liberty is usually around the corner.

The job of art is to chase ugliness away.

U2's best work has always been when we didn't know what we're doing.

Celebrity is ridiculous and silly and it's mad that people like me are listened to - you know, rap stars and movie stars.

I'm never nervous when I go to meet heads of state. I feel they should be nervous, because they are the ones who'll be held accountable for the lives their decisions will impact the most.

I think carrying moral baggage is very dangerous for an artist. If you have a duty, it's to be true and not cover up the cracks.

Facebook are an amazing team, a brilliant team. It's a technology that brings people together.