If you think of global public goods like polio eradication, the kind of risk-taking new approach, philanthropy really does have a role to play there, because government doesn't do R&D about new things naturally as much as it probably should, and so philanthropy's there.

If I was down to the last dollar of my marketing budget I'd spend it on PR!

The advance of technology is based on making it fit in so that you don't really even notice it, so it's part of everyday life.

Typically, your corporate e-mail account is not, today, that spam-targeted. It's more the free e-mail accounts that are spam-targeted.

If you think you're a really good programmer... read Knuth's Art of Computer Programming... You should definitely send me a resume if you can read the whole thing.

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

The two areas that are changing... are information technology and medical technology. Those are the things that the world will be very different 20 years from now than it is today.