The eighteenth-century German physicist Georg Christoph Lichtenberg left behind at the time of his death thousands of fragmentary notes commenting on a dazzling and at the same time puzzling array of subjects. Pierre Senges’s Fragments of Lichtenberg imaginatively and hilariously reconstructs the efforts of scholars across three centuries to piece together Lichtenberg’s disparate notes into a coherent philosophical or artistic statement. What emerges instead from their efforts are...