No one can find salvation except in the Catholic Church. Outside the Church you can find everything except salvation. You can have dignities, you can have Sacraments, you can sing “alleluia”, answer “Amen”, have faith in the name of the Father, the Son, and the Holy Ghost, and preach it too; But never can you find salvation except in the Catholic Church.
--St. Augustine, Sermon to the people of the Church of Caearea