Gene B. Chase on Norbert Wiener

“He wrote a very complicated integral on the blackboard, and then wrote '=6' with no intermediate steps. An intrepid student challenged him: Can you do that another way? He left the room for about 20 minutes. He returned, erased the '=6' and wrote '=6' saying that yes indeed he could.”

“He was short and rotund. Because he stood close to the blackboard, students sat in seats far to the sides to be able to get an angled look at what he was writing. Only the graduate teaching assistant sat in the middle. This was still a problem because Wiener sometimes erased with the left hand what he wrote with the right hand.”