A more complex response lies in his small 1993 book Beyond Despair, which is as profound a meditation on the relation of memory to imagination as anything I know. Once, at Boston University, he gave a lecture based on one of its chapters. Afterward, my students stood together, not moving, not speaking, in the courtyard. “I can’t stop trembling,” said one of them, as I approached this little grove of human aspens. Holding the book now, I can’t help trembling myself.