Quanta Cura and the Syllabus of Errors

In this thundering denunciation of modern errors, Pope Pius IX defends Catholic teaching on society, on the state, on marriage, and on the Church without ambiguity and without apology. Beginning with a lamentation of how far errors about these matters have spread, and continuing to command the bishops of the world to teach their flocks the truth, Pope Pius defends the deposit of faith that was handed down to him from the apostles.

Even more, however, Pope Pius takes the extraordinary step of explicitly listing eighty errors which no Catholic can accept. This famous “syllabus of errors” provides clearly identified doctrines which a Catholic must reject, and guides Catholic states and societies in how they should manage important issues.

Quanta Cura and the Syllabus of Errors is a milestone of Catholic social teaching and a vital part of the doctrine of Christ the King.

Christus vincit! Christus regnat! Christus imperat!