Page:Petri Privilegium - Manning.djvu/76

Rh of all Catholic doctors at this day, and it is, I think, a thing certain by faith.'

'But the said Rogerus ventured to answer, both as to this definition (that of Boniface VIII. in Extrav. "Unam Sanctam," "De Major," etc.) and as to other pontifical decrees, that it is not certain de fide that the Pontiff defining without a General Council cannot err. But this answer is not only rash in the extreme, but also erroneous: for although formerly some Catholic doctors may have doubted or erred in this without pertinacity, yet at this day there is so consistent an agreement in the Church, and so concurrent a sense of Catholic writers as to this truth, that it is in no wise lawful to call it in question.'

So also Sylvius teaches: 'The answer is certain de fide, that the judgment of the Roman Pontiff is infallible in determining matters of faith. So