If you pour your life into songs, you want them to be heard. It's a desire to communicate. A deep desire to communicate inspires songwriting.

I have been working for Africans since I was 18, when I got involved with the Nelson Mandela concerts. I got involved with debt cancellation because Desmond Tutu demanded that the world respond to that situation.

When those people get up at the Grammys and say, "I thank God", I always imagine God going, "Oh, don't, please don't thank me for that one. Please, oh, that's an awful one! Don't thank me for that - that's a piece of crap !"

Smack in the centre of contradiction is the place to be.

Whenever I see grace, I’m moved.

U2 was involved in Live Aid, and I ended up going to Ethiopia and working there for some time with my wife, Ali.

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?'