[Melinda Gates] is a lot of fun to work with. There's some of the people skills that she's better at and cares about more. It'd be a mistake not to think of her as very numerical and interested in the science. I enjoy, if I get ahead of her, say, understanding the immune system, then we can spend a few hours, where I'm going through how amazing it is and interesting, and how that affects our creating new products, so I've always had a partner.

The trick generally is to break programs into pieces and have those pieces be individually testable and so then when you move on to the other pieces you treat it as a black box knowing that it either works or doesn't work.

There's only one trick in software, and that is using a piece of software that's already been written.

Middle-income countries are the biggest users of GMOs. Places like Brazil.

Don't let complexity stop you.

Internet TV and the move to the digital approach is quite revolutionary. TV has historically has been a broadcast medium with everybody picking from a very finite number of channels.

Technology must be implemented as part of a thoughtful, holistic approach to education transformation that includes teacher training, relevant curricula, parental involvement, and programs for children that fill unmet needs for basics like nutrition and health care.