POPE LEO'S INSPIRATION: RERUM NOVARUM | Pope Leo XIII

AGAINST THE GREAT APOSTASY: E SUPREMI | Pope Saint Pius X

NO SALVATION OUTSIDE THE CHURCH: CANTATE DOMINO | Pope Eugene IV, Council of Florence

LATIN MASS FOREVER: QUO PRIMUM | Pope Saint Pius V + an Explanation by Father Hesse

FREEMASONRY DESTROYED: HUMANUM GENUS | Pope Leo XIII

MIRARI VOS: On Liberalism and Religious Indifferentism | Pope Gregory XVI

QUAS PRIMAS: On the Feast of Christ the King | Pope Pius XI