The people who resist change will be confronted by the growing number of people who see that better ways are available; thanks to technology.

Natural epidemics can be extremely large. Intentionally caused epidemics, bioterrorism, would be the largest of all.

We all learn best in our own ways. Some people do better studying one subject at a time, while some do better studying three things at once. Some people do best studying in structured, linear way, while others do best jumping around, surrounding a subject rather than traversing it. Some people prefer to learn by manipulating models, and others by reading.

Before you were born, your parents weren't as boring as they are now. They got that way from paying your bills, cleaning your clothes and listening to you talk about how cool you thought you were. So before you save the rain forest from the parasites of your parent's generation, try delousing the closet in your own room.

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

Make it just like a Mac.

There will be two types of businesses in the next 5 years, those that are on the Internet, and those that are out of business