This and a multitude of similar passages Pascal covered with the keen ridicule and indignant denunciation of which he was so great a master. But even the genius of Pascal could not stop such efforts. In the eighteenth century they were renewed by a far greater theologian than Escobar--by him who was afterward made a saint and proclaimed a doctor of the Church--Alphonso Liguori. Starting with bitter denunciations of usury, Liguori soon developed a multitude of subtle devices for escaping the guilt of it. Presenting a long and elaborate theory of "mental, usury" he arrives at the conclusion that, if the borrower pay interest of his own free will, the lender may keep it. In answer to the question whether the lender may keep what the borrower paid, not out of gratitude but out of fear--fear that otherwise loans might be refused him in future--Liguori says, "To be usury it must be paid by reason of a contract, or as justly due; payment by reason of such a fear does not cause interest to be paid as an actual price." Again Liguori tells us, "It is not usury to exact something in return for the danger and expense of regaining the principal." The old subterfuges of "Damnum emergens" and "Lucrum cessans" are made to do full duty. A remarkable quibble is found in the answer to the question whether he sins who furnishes money to a man whom he knows to intend employing it in usury. After citing affirmative opinions from many writers, Liguori says, "Notwithstanding these opinions, the better opinion seems to me to be that the man thus putting out his money is not bound to make restitution, for his action is not injurious to the borrower, but rather favourable to him," and this reasoning the saint develops at great length. In the Latin countries this sort of casuistry eased the relations of