From the AP in the New York Times:
AP: What do you expect will be the legacy of your presidency?
Summers: I think it’s been a very good five years for the university. We’ve expanded our commitment to equal opportunity by becoming the first university in the country to eliminate tuition for families earning under $60,000, laid a foundation for that threshold to increase in the future. We’ve substantially increased the university’s commitment to public service.
The university has launched the greatest period of scientific expansion in its history. Twenty football fields worth of laboratory space are now either under construction or in the planning stage, including space for the stem cell institute, which is filling a gap left when the federal government abdicated in this area.