Going out in the field, it's always enlightening to see what's working and what's not and to sit down and talk - I was with young girls in south Africa - understanding why our tools for prevention aren't being adopted, and what way may need to invent to help protect them.

To get a big company moving fast, especially on a many-headed opportunity like the Internet, you have to have hundreds of people participating and coming up with ideas.

Google's done a super good job on search; Apple's done a great job on the IPod.

I agree with people like Richard Dawkins that mankind felt the need for creation myths. Before we really began to understand disease and the weather and things like that, we sought false explanations for them. Now science has filled in some of the realm – not all – that religion used to fill.

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

We all sort of do want incentives for creative people to still exist at a certain level. You know, maybe rock stars shouldn't make as much; who knows? But you want as much creativity to take place in the future as took place in the past.

Investing in innovation, which was my broad theme talking to [Warren Buffett ], that included health vaccines, it included energy and education.