With rare exceptions, all of your most important achievements on this planet will come from working with others- or, in a word, partnership.

The model of the teaching hospital, which links research to teaching and service is what's missing in global health.

I think we will see better vaccines within the next 15 years, but I'm not a scientist and am focused on the short-term - what will happen in the interim.

In fact, it seems to me that making strategic alliances across national borders in order to treat HIV among the world's poor is one of the last great hopes of solidarity across a widening divide.

The biggest public health challenge is rebuilding health systems. In other words, if you look at cholera or maternal mortality or tuberculosis in Haiti, they're major problems in Haiti, but the biggest problem is rebuilding systems.

For me, an area of moral clarity is: you're in front of someone who's suffering and you have the tools at your disposal to alleviate that suffering or even eradicate it, and you act.

I can't think of a better model for Haiti rebuilding than Rwanda.