We're at the point now where the challenge isn't how to communicate effectively with e-mail; it's ensuring that you spend your time on the e-mail that matters most.

As we have taken diarrhea and pneumonia down, even malaria down quite a bit, the portion of the days that are very early in that 5 years - the first month, the first day - it's about half now. Yet that's the part we understand the least.

Customers want high quality at low prices and they want it now.

Does the e-mail say it's about 'enlargement' - that might be spam.

Business isn't that complicated. I wouldn't want to put it on my business card.

America's high schools are obsolete. By obsolete, I don't just mean that they're broken, flawed, or underfunded, though a case could be made for every one of those points. By obsolete, I mean our high schools-even when they're working as designed-cannot teach all our students what they need to know today.

Our work in global health is about things like cutting childhood deaths, and every year we continue to make progress there.