Training the workforce of tomorrow with today's high schools is like trying to teach kids about today's computers on a 50-year-old mainframe.

I am not in competition with anyone but myself. My goal is to improve myself continuously.

It's the poorer people in tropical zones who will get really hit by climate change - as well as some ecosystems, which nobody wants to see disappear.

My guideline has always been to avoid a focus on me personally. Not because of any deep, dark secrets. Rather just a sense of privacy.

We got a malaria initiative, really a phenomenal time, even though in the early stages there was some uncertainty. Then of course [Barack] Obama, although he had budget constraints, he believed in these things; a lot of new initiatives, including in agriculture.

Microsoft is a company that manages imagination.

Nigeria has moved into low-middle-income, but their north is very poor, and the health care systems there have broken down.