"He who does not accept the doctrine of the Church of Rome and the pontiff of Rome as an infallible rule of faith, from which the Holy Scriptures, too, draw their stregnth and authority, is a heretic"
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This is the "Third Foundation" from Sylvester Mazzolini Prierias' Dialogue Concerning the Power of the Pope (1518) which was his response to Luther's Ninety-Five Theses. Prierias' views on papal authority anticipate the First and Second Vatican Councils.