Sheryl Sandberg (MBA 1995) at HBS Class Day 2012: It’s an honor to be here today to address HBS’s distinguished faculty, proud parents, patient guests, and most important the class of 2012. Today was supposed to be a day of unbridled celebration, and I know that’s no longer true. I join all of you in grieving for your classmate….today still marks a distinct and impressive achievement for this clas