There are some who will say: Why, then, does Divine Providence often permit eminent persons, who are well established in the Church, to announce novel ideas to Catholics? This is a good and earnest question, and should be thoroughly and extensively discussed. To do so satisfactorily, we have to refer not to our own ingenuity, but to the authority of divine Law and to the basic documents of ecclesiastical teaching. Let us listen, therefore, to blessed Moses. He himself may teach us why