I am honored to have been invited, for a second time, to serve as acting dean of Harvard Medical School. This opportunity to guide our School through this time of transition, until a permanent dean is named, is truly a privilege.

In his 2016 Class Day keynote address, Dean Jeffrey S. Flier discusses transitions, recalling his own medical school commencement 44 years ago: “This is not just a day to celebrate. It's also a day of transition.”