"The virtue of faith, the foundation of a Christian life, gives us an absolute certitude of the truths which we believe; a certitude more positive than that which is based on the testimony of our eyes and reason. It rests on God, whose word cannot fail: and on the Church, which is likewise infallible when teaching us that word."
-The Rev. Fr. Francois Xavier Schouppe S.J. (Source: "Short Sermons For The Low Masses Of Sunday. Comprising In Four Series A Methodical Exposition of Christian Doctrine", p. 290, London: Burns & Oates, 1883 Imprimatur)------------------------------------------------------------------------------------------------------------------------------------------"To be a true Catholic means to hold most firmly all those truths which Christ and his apostles have taught, which the Catholic Church has always proclaimed, which the saints have professed, which the popes and councils have defined, and which the Fathers and Doctors of the Church have defended. He who denies but one of those truths, or hesitates to receive one of them, is not a Catholic. He claims to exercise the right of private judgment in regard to the doctrine of Christ, and therefore he is a heretic. The true Catholic knows and believes that there can be no compromise between God and the devil, between truth and error, between orthodox faith and heresy." -Fr. Michael Mueller, C.SS.R., 1880 A.D.