(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.

I have this very positive view of the world getting better and better. The list of things that could be huge setbacks is not very long: A nuclear war, climate change and epidemics.

You can be a business thinker.

Teams should be able to act with the same unity of purpose and focus as a well motivated individual.

Certain teams are more careful in what they write. They generate less bugs. You can know that but it still doesn't mean there might be there might not be one bug that would be bad to ship the product with.

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

People who feared IBM were wrong, ... Technology is ever-changing.