The key for us, number one, has always been hiring very smart people.

With tech companies, whoever's the leader is always questioned, you know. They say, 'Is this the end of them?' And - there's more - more times people think that's the case than it really is the case.

It's fantastic that Microsoft in the cloud space is one of very few companies that's got the critical mass, the particular emphasis on helping business customers get up to that cloud with all the unique requirements they have. It's very exciting.

There was a magical breakthrough when the computer became cheap and we could see that everyone could afford a computer.

Anyone who spends their life on a computer is pretty unusual.

(On being the world's richest man) I wish I wasn't ... There's nothing good that comes out of that. You get more visibility as a result of it.

Know your numbers' is a fundamental precept of business.