Pius IX: "the Catholic faith is necessary for attaining salvation"

Spirituality

St. Alphonsus on the damnation of the impure: “Continue, O fool, says St. Peter Damian (speaking to the unchaste), continue to gratify the flesh; for the day will come in which thy impurities will become as pitch in thy entrails, to increase and aggravate the torments of the flame which will burn thee in hell: ‘The day will come, yea rather the night, when thy lust shall be turned into pitch, to feed in thy bowels the everlasting fire.’”