Why is it that when it comes to our most cherished social goal [health care], we not only tolerate poor execution, sometimes we even celebrate it?

When you're working on development issues, optimism is not always based on rational analysis, often it is a moral choice.

Water and sanitation has not had the same kind of champion that global health, and even education, have had.

A lot of young people dont think they can make a difference. Thats really what I am at Dartmouth to do. Im there to tell the young people, Look, a few committed souls can change the world.

Unless you invest in people, you are not going to see growth in the long term, the medium term, and maybe even the short term.

There will be water and food fights everywhere.

Ending poverty and ensuring sustainability are the defining challenges of our time. Energy is central to both of them.