Indulgences, Mary as co-redemptrix, treasury of merit teachings, purgatory, papal supremacy and universal jurisdiction, papal infallibility, I think the teachings have changed during the last 2,000 years just a touch...;) Go ask the Orthodox...
And the Catholic Church does indeed teach that it has the monopoly on truth. That's what infallibility and teaching against moral relativism, a concrete catechism, and an infallible pope/magisterium is all about, right? To not have a monopoly on truth would imply that infallibility is a part time reality. Yes, the Church teaches that all churches possess kernels of truth but the Catholic Church possesses it all in its fullness.
[quote="Della, post:9, topic:2096"]
First off, the example PDR1234 gave us was not the lousy Catholic and the saintly Protestant, but two people who seem to be equals in spiritual attainment, so let's stick to that. :)
Secondly, the Church in no way teaches it has exclusive right to truth. It teaches just the opposite--that there is truth in most other religious bodies, Christian and non-Christian (except, perhaps the really crazy ones like the Hale-Bopp kind of groups). Truth is universal. God's natural law is available to anyone who cares to seek it--St. Paul told us as much in his Epistles.
And thirdly, the Protestant isn't representative of one ecclesial body that teaches one doctrine. He belongs to one of many such bodies, each teaching different things about very important matters, such as the various beliefs about sacraments, morals, the meaning of Jesus' life and mission, and the list goes on. The Church, on the other hand, teaches a set of doctrines that has not changed in 2000+ years.
Trying to reach heaven or live a godly/saintly life is not easy. If it were everyone could claim sainthood for himself. Jesus instituted sacraments and the hierarchy for good reason--to ensure we had every possible help in living as God wants us to and for attaining to holiness, and thus union with God. That is what is important here, not whether or not a Protestant might be able to get to heaven without being in perfect union with the Church, for as we must also remember, all Protestants baptized with the trinitarian rite and who intend what the Church intends by baptizing are Christians by right of their baptism and are, therefore, in imperfect union with Christ's Church. When a such a Protestant joins the Catholic Church he doesn't "convert" he is reconciled to the Church that Christ founded and of which he is a partial member already.