We're only at the beginning of what we have to do here.

Don't let complexity stop you. Be activists. Take on the big inequities. It will be one of the great experiences of your lives.

For Africa to move forward, you've really got to get rid of malaria.

Should there be cameras everywhere in outdoor streets? My personal view is having cameras in inner cities is a very good thing. In the case of London, petty crime has gone down. They catch terrorists because of it. And if something really bad happens, most of the time you can figure out who did it.

For one thing, there's an essential human factor in every business endeavor. It doesn't matter if you have a perfect product, production plan and marketing pitch; you'll still need the right people to lead and implement those plans.

I'm an investor in a number of biotech companies, partly because of my incredible enthusiasm for the great innovations they will bring.

Any machine that can run a browser is not thin. The browser has to be the thickest application man has ever invented, and it's getting thicker faster than anything ever development by man.