Charles Hodge (1797-1878) was one of nineteenth-century America's leading theologians, owing in part to a lengthy teaching career, voluminous writings, and a faculty post at one of the nation's most influential schools, Princeton Theological Seminary. Surprisingly, the only biography of this towering figure was written by his son, just two years after his death. Paul C. Gutjahr's book is the first modern critical biography of a man some have called...