What objection can be raised to this? Let men extol the obligation of a vow as much as they list, yet shall they not bring to pass that the vow annuls the commandment of God. The Canons teach that the right of the superior is excepted in every vow; [that vows are not binding against the decision of the Pope;] much less, therefore, are these vows of force which are against the commandments of God. Now, if the obligation of vows could not be changed for any cause whatever, the Roman Pontiffs could never have given dispensation for it is not lawful for man to annul an obligation which is simply divine. But the Roman Pontiffs have prudently judged that leniency is to be observed in this obligation, and therefore we read that many times they have dispensed from vows. The case of the King of Aragon who was called back from the monastery is well known, and there are also examples in our own times. [Now, if dispensations have been granted for the sake of securing temporal interests, it is much more proper that they be granted on account of the distress of souls.] In the second place, why do our adversaries exaggerate the obligation or effect of a vow when, at the same time, they have not a word to say of the nature of the vow itself, that it ought to be in a thing possible, that it ought to be free, and chosen spontaneously and deliberately? But it is not unknown to what extent perpetual chastity is in the power of man. And how few are there who have taken the vow spontaneously and deliberately! Young maidens and men, before they are able to judge, are persuaded, and sometimes even compelled, to take the vow. Wherefore it is not fair to insist so rigorously on the obligation, since it is granted by all that it is against the nature of a vow to take it without spontaneous and deliberate action. Most canonical laws rescind vows made before the age of fifteen; for before that age there does not seem sufficient judgment in a person to decide concerning a perpetual life. Another Canon, granting more to the weakness of man, adds a few years; for it forbids a vow to be made before the age of eighteen. But which of these two Canons shall we follow? The most part have an excuse for leaving the monasteries, because most of them have taken the vows before they reached these ages. Finally, even though the violation of a vow might be censured, yet it seems not forthwith to follow that the marriages of such persons must be dissolved. For Augustine denies that they ought to be dissolved (XXVII. Quaest. I, Cap. Nuptiarum), and his authority is not lightly to be esteemed, although other men afterwards thought otherwise.