"And why be scandalized by the infallibility of a man, of the Pope? What difference does it make whether it be a book that is infallible — the Bible, or a society of men — the Church, or a single man? Does it make any essential change in the rational difficulty? And since the infallibility of a book or of a society of men is not more rational than that of a single man, this supreme offense to the eyes of reason has to be postulated."