In the U.S., we believe the best way to improve lives is to improve public education.

If I hadn't given my money away, I'd have had more than anyone else on the planet.

Personally, I'd like to see more of our leaders take a technocratic approach to solving our biggest problems.

I would certainly use my voice to try and avoid anything that undermines confidence, so that parents are using vaccines fully.

The media covers what’s new – and millions of people dying is nothing new. So it stays in the background, where it’s easier to ignore. But even when we do see it or read about it, it’s difficult to keep our eyes on the problem. It’s hard to look at suffering if the situation is so complex that we don’t know how to help. And so we look away.

'I don't know' has become 'I don't know yet'.

Oh, I think there are a lot of people who would be buying and selling online today that go up there and they get the information, but then when it comes time to type in their credit card they think twice because they're not sure about how that might get out and what that might mean for them.