India just went 3 years with no cases [of polio]. Pakistan is our toughest location right now because some parts of the Taliban have not allowed vaccinators to come in and have even attacked vaccinators. We are hopeful this will get resolved since no one wants their kid to be paralyzed. I spend a lot of time making sure the polio campaign is doing the best it can. We have great computer models that help guide our activities.

We're only at the beginning of what we have to do here.

The poor can't wait. Philanthropists needed to carry on being generous.

What we're really after is simply that people acquire a legal license for Windows for each computer they own before they move on to Linux or Sun Solaris or BSD or OS/2 or whatever.

Bioterrorism is like earthquakes, you should think in order of magnitudes. If you can kill 10 people that's a one, 100 people that's a two... Bioterrorism is the thing that can give you not just sixes, but sevens, eights and nines.

Patience is a key element of success.

Globalization has made copper and other minerals more valuable, and Ghana and Kenya have recently discovered mineral resources.