Whenever I see grace, I’m moved.

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?'

When you truly accept that those children in some far off place in the global village have the same value as you in God's eyes or even in just your eyes, then your life is forever changed; you see something that you can't un-see.

You know, God has some really weird kids, and I find it hard to be in their company most of the time.

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.

When a nation is over-reliant on one or two commodities like oil or precious minerals, corrupt government ministers and their dodgy associates hoard profits and taxes instead of properly allocating them to schools and hospitals.

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.