Bishop Marcel Lefebvre, Open Letter to Confused Catholics, Pages 73-74: “Does this mean that no Protestant, no Muslim, no Buddhist or animist will be saved? No, it would be a second error to think that. Those who cry for intolerance in interpreting St. Cyprian’s formula Outside the Church there is no salvation, also reject the Creed, “I accept one baptism for the remission of sins,” and are insufficiently instructed as to what baptism is...”
Bishop Marcel Lefebvre, Against the Heresies, Page 216: “Evidently, certain distinctions must be made. Souls can be saved in a religion other than the Catholic religion (Protestantism, Islam, Buddhism, etc.), but not by this religion. There may be souls who, not knowing Our Lord, have by the grace of the good Lord, good interior dispositions, who submit to God...But some of these persons make an act of love which implicitly is equivalent to baptism of desire. It is uniquely by this means that they are able to be saved.”
Bishop Marcel Lefebvre, Against the Heresies, Page 217: “One cannot say, then, that no one is saved in these religions…”