Ethiopia didn't just blow my mind; it opened my mind. Anyway, on our last day at this orphanage a man handed me his baby and said, 'Would you take my son with you?' He knew, in Ireland, that his son would live, and that in Ethiopia, his son would die.

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.

Rock stars are good at making noise.

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 !"

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.

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?'

I love America and I hate it. I'm torn between the two. I have two conflicting visions of America. One is a kind of dream landscape and the other is a kind of black comedy.