The thing about rights is that in the end you can't prove what should be considered a right.

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.

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 idea that some lives matter less is the root of all that is wrong with the world.

If any country was a mine-shaft canary for the reintroduction of cholera, it was Haiti - and we knew it. And in retrospect, more should have been done to prepare for cholera... which can spread like wildfire in Haiti... This was a big rebuke to all of us working in public health and health care in Haiti.

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

I think that looking forward it's easy to imagine more constructive help for Haiti.