“And how does he reconcile that?” said I. “By the most subtle of all the modern methods, and by the nicest possible application of probability,” replied the monk. “You may recollect you were told the other day, that the affirmative and negative of most opinions have each, according to our doctors, some probability—enough, at least, to be followed with a safe conscience. Not that the _pro_ and _con_ are both true in the same sense—that is impossible—but only they are both probable, and therefore safe, as a matter of course. On this principle our worthy friend Diana remarks: ‘To the decision of these three popes, which is contrary to my opinion, I answer, that they spoke in this way by adhering to the affirmative side—which, in fact, even in my judgment, is probable; but it does not follow from this that the negative may not have its probability too.’ And in the same treatise, speaking of another subject on which he again differs from a pope, he says: ‘The pope, I grant, has said it as the head of the Church; but his decision does not extend beyond the sphere of the probability of his own opinion.’ Now you perceive this is not doing any harm to the opinions of the popes; such a thing would never be tolerated at Rome, where Diana is in high repute. For he does not say that what the popes have decided is not probable; but leaving their opinion within the sphere of probability, he merely says that the contrary is also probable.” “That is very respectful,” said I. “Yes,” added the monk, “and rather more ingenious than the reply made by Father Bauny, when his books were censured at Rome; for when pushed very hard on this point by M. Hallier, he made bold to write: ‘What has the censure of Rome to do with that of France?’ You now see how, either by the interpretation of terms, by the observation of favorable circumstances, or by the aid of the double probability of _pro_ and _con_, we always contrive to reconcile those seeming contradictions which occasioned you so much surprise, without ever touching on the decisions of Scripture, councils, or popes.” “Reverend father,” said I, “how happy the world is in having such men as you for its masters! And what blessings are these probabilities! I never knew the reason why you took such pains to establish that a single doctor, _if a grave one_, might render an opinion probable, and that the contrary might be so too, and that one may choose any side one pleases, even though he does not believe it to be the right side, and all with such a safe conscience, that the confessor who should refuse him absolution on the faith of the casuists would be in a state of damnation. But I see now that a single casuist may make new rules of morality at his discretion, and dispose, according to his fancy, of everything pertaining to the regulation of manners.”