Being flooded with information doesn't mean we have the right information or that we're in touch with the right people.

Really advanced civilization is based on advances in energy.

[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.

Microsoft has had its success by doing low-cost products and constantly improving those products and we've really redefined the IT industry to be something that's about a tool for individuals.

The early personal computers were not very powerful so the idea of feeding their program into a small amount of memory requires immense skill.

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.

Kids are taking PCs and the Internet to new heights. They're the ones that are designing the cutting-edge web sites.