Even after forty years, I still remember the most important lecture I heard at college. It was delivered to me by a friend, standing in the dormitory hallway. I had once again done something thoughtless and self-centered. She had had it with me. She delivered a lecture on all of my failings, all of the ways I had let people down and acted in selfish self-interest. Defensively, I pushed back. But I also absorbed what she said.
