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.
U2 was involved in Live Aid, and I ended up going to Ethiopia and working there for some time with my wife, Ali.
Because I was suspicious of the traditional Christian church, I tended to tar them all with the same brush. That was a mistake, because there are righteous people working in a whole rainbow of belief systems - from Hasidic Jews to right-wing Bible Belters to charismatic Catholics.
I believe that Jesus was, you know, the Son of God. And I understand that... we need to be really, really respectful to people who find that ridiculous and... preposterous.
I think 'Invisible' is a great song, but I don't know how accessible it is.
As hard as it is, as ghetto as it is, hip-hop is pop music. It's the sound of music getting out of the ghetto, while rock is looking for a ghetto.
The extraction of oil, coal and minerals brought, and still brings, a cost to the environment.
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.
Rock music is niche.
I used to - my earliest memory of waking up with a melody in my head was, you know, 8, 9, 10. I've always heard kind of melodies in my head.
Facebook are an amazing team, a brilliant team. It's a technology that brings people together.
God's Spirit moves through us and the world at a pace that can never be constricted by any one religious paradigm.
I'm a singer, not a politician, and I think you don't want the two to get confused. It's not OK to be on CNN talking about people starving and then tell the interviewer that your new album is coming out in six months.
Because you know when you first become famous, you start walking a little different because people are staring at you.
It's very important for Christians to be honest with God, which often, you know, God is much more interested in who you are than who you want to be.
I don't let my religious world get too complicated.
Politeness is, you know, is a wonderful thing. Manners are in fact, really important thing. But remember, Jesus didn't have many manners as we now know.
Actually oddly enough, I think my work, the activism, will be forgotten. And I hope it will. Because I hope those problems will have gone away.
Particularly conservative Christians, I was very angry that they were not involved more in the AIDS emergency.
At the heart of the Irish economy has always been the philosophy of tax competitiveness. On the cranky left, that is very annoying; I can see that.
But there is a difference between cozying up to power and being close to power.
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?'
It's not a coincidence that in the Scriptures, poverty is mentioned more than 2,100 times. It's not an accident. That's a lot of air time, 2,100 mentions.
So you cannot, as a Christian, walk away from Africa.
Marriage is this grand madness, and I think if people knew that, they would perhaps take it more seriously.
God is so big. It's a gigantic concept in God. The idea that God might love us and be interested in us is kind of huge and gigantic, but we turn it, because we're small-minded, into this tiny, petty, often greedy version of God, that is religion.
I don't like the name, U2, actually.
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.
Sub-Saharan Africa is also home to 400 million of the world's poorest people.
Overcoming my dad telling me that I could never amount to anything is what has made me the megalomaniac that you see today.
What's so powerful about the Psalms are, as well as they're being gospel and songs of praise, they are also the blues.
Technology is huge; I wanted to learn about it. People might say that's odd, but I think it's odd if artists aren't interested in the world around them. I'm always chasing that.
Celebrity is ridiculous and silly and it's mad that people like me are listened to - you know, rap stars and movie stars.
The French are so into themselves that they don't even notice you.