No man can find salvation except in the Catholic Church. Outside the Catholic Church one can have everything except salvation. One can have honor, one can have sacraments, one can sing alleluia, one can answer amen, one can have faith in the Name of the Father and the Son and of the Holy Ghost, and preach it too, but never can one find salvation except in the Catholic Church.
-St. Augustine (354-430), Bishop and Doctor of the Church