He finds, therefore, that his confidence in being baptized among the Donatists is somewhat profitless, seeing that, though we both acknowledge that baptism exists with them, yet we do not both declare that it ought to be received from them. But he has made up his mind to cling rather to us in matters where we disagree. Let him therefore feel confidence in receiving baptism in our communion, where he is assured that it both exists and is rightly received; and let him not receive it in a communion, where those whose opinion he has determined to follow acknowledge indeed that it exists, but say that it cannot rightly be received. Nay, even if he should hold it to be a doubtful question, whether or no it is impossible for that to be rightly received among the Donatists which he is assured can rightly be received in the Catholic Church, he would commit a grievous sin, in matters concerning the salvation of his soul, in the mere fact of preferring uncertainty to certainty. At any rate, he must be quite sure that a man can be rightly baptized in the Catholic Church, from the mere fact that he has determined to come over to it, even if he be baptized elsewhere. But let him at least acknowledge it to be matter of uncertainty whether a man be not improperly baptized among the Donatists, when he finds this asserted by those whose opinion he is convinced should be preferred to theirs; and, preferring certainty to uncertainty, let him be baptized here, where he has good grounds for being assured that it is rightly done, in the fact that when he thought of doing it elsewhere, he had still determined that he ought afterwards to come over to this side.