At Microsoft there are lots of brilliant ideas but the image is that they all come from the top - I'm afraid that's not quite right.

The billion people who wake up every day trying to figure out if they have enough food to eat won't be at Davos.

I believe innovation is the most powerful force for change in the world. People who are pessimistic about the future tend to extrapolate from the present in a straight line. But innovation fundamentally shifts the trajectory of development.

I've for some reason or other... never met Donald Trump.

There are websites that any government wants to block. The truth about the Internet is that it's extremely hard to block anything - extremely hard. You'll never get perfect blocking.

In my view, investing in public libraries is an investment in the nation's future.

I've always been interested in science - one of my favourite books is James Watson's 'Molecular Biology of the Gene.'