The first thing I would like to say is “thank you.”Not only has Harvard given me an extraordi-nary honor, but the weeks of fear and nausea I have endured at the thought of giving this com-mencement address have made me lose weight. A win-win sit-uation! Now all I have to do is take deep breaths, squint at the red banners, and convince myself that I am at the world’s largest Gryffindor reunion.