The fact is that ours is the first generation that can look disease and extreme poverty in the eye, look across the ocean to Africa, and say this, and mean it. We do not have to stand for this. A whole continent written off - we do not have to stand for this.

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.

Overcoming my dad telling me that I could never amount to anything is what has made me the megalomaniac that you see today.

It's still very difficult for me to rely. Your weakness, the blessing of your weakness is it forces you into friendships. The things that you lack, you look for in others.

So what we're talking about here is human rights. The right to live like a human. The right to live, period. And what we're facing in Africa is an unprecedented threat to human dignity and equality.

Dream up the kind of world you want to live in. Dream out loud.

The idea that there is one kind of African is of course ridiculous. Sometimes African entrepreneurs want to kill you because you are saying public health is the priority, not roads. Of course they are right to press for that issue, but so are we right, I believe, to argue for example that millions of children could and should be vaccinated.