I accept with sincere belief the doctrine of faith as handed down to us from the Apostles by the orthodox Fathers, always in the same sense and with the same interpretation.
Pope Pius XOur Apostolic Mandate requires from Us that We watch over the purity of the Faith and the integrity of Catholic discipline. It requires from Us that We protect the faithful from evil and error; especially so when evil and error are presented in dynamic language which, concealing vague notions and ambiguous expressions with emotional and high-sounding words, is likely to set ablaze the hearts of men in pursuit of ideals which, whilst attractive, are nonetheless nefarious.
Pope Pius XThe Church alone, being the Bride of Christ and having all things in common with her Divine Spouse, is the depository of the truth.
Pope Pius XLet the storm rage and the sky darken - not for that shall we be dismayed. If we trust as we should in Mary, we shall recognize in her, the Virgin Most Powerful "who with virginal foot did crush the head of the serpent.
Pope Pius XBut since the Modernists (as they are commonly and rightly called) employ a very clever artifice, namely, to present their doctrines without order and systematic arrangement into one whole, scattered and disjointed one from another, so as to appear to be in doubt and uncertainty, while they are in reality firm and steadfast, it will be of advantage, Venerable Brethren, to bring their teachings together here into one group, and to point out the connexion between them, and thus to pass to an examination of the sources of the errors, and to prescribe remedies for averting the evil.
Pope Pius X