Robots will play an important role in providing physical assistance and even companionship for the elderly.

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.

Outlook 2003 did create the idea of search folders and the whole Longhorn philosophy. You can see it at work in search folders, where instead of having to drop things into individual folders, and things exist only in one folder, you create these search folders and you have the criteria for the search folder.

This social-networking thing takes you to crazy places.

Of my mental cycles, I devote maybe 10 percent to business thinking. Business isn't that complicated. I wouldn't want to put it on my business card.

AIDS itself is subject to incredible stigma.

Life is a lot more fun if you treat its challenges in creative ways.