Professor Hall had a reputation that followed him through every hallway of the engineering building: brilliant, exacting, and almost impossible to please. Students traded warnings about him the way sailors trade warnings about storms. I took his course because I had no choice, sat in the back row for an entire semester, and left the day of the final exam vowing never to see him again.
He graded essays with a red pen so sharp it seemed personal, and he gave full marks provided that a student's reasoning, not just the final answer, held up under questioning. Few students ever earned his praise. I certainly never did, and for years afterward, whenever his name came up, I described him the same way everyone else did: cold, distant, impossible to satisfy.
Fifteen years later, I attended his retirement dinner mostly out of obligation, expecting a short, awkward evening among people I barely remembered. Hardly had the speeches ended when a former colleague of his stood up holding a worn leather notebook. Inside, she explained, Professor Hall had written a paragraph about every single student who had ever passed through his classroom — what they struggled with, what surprised him about them, and, whenever he could find out, what they had gone on to do with their lives.
Far from being the cold, indifferent man his reputation suggested, he had spent three decades quietly following his former students' careers, often without their knowledge, simply because he wanted to know whether the seeds he had planted had grown into anything. He was not only strict but also, it turned out, more invested in us than any professor I had ever known.
When the colleague read my own paragraph aloud, written more than a decade before that evening, I heard him describe a quiet student in the back row who asked better questions than he let on, and who he suspected would end up doing something interesting with his life. I sat there in the middle of a room full of strangers, finally understanding a man I had spent fifteen years getting completely wrong.