The actual documents of Vatican Council II are required reading for anyone who wants to know what the Catholic Church really teaches. This translation is suspect however. In paragraph 25 of the Dogmatic Constitution Of The Church, Lumen Gentium, the translation here is: "when he (the pope) proclaims by an absolute decision a doctrine .....". The Latin text has "definitivo actu" which is clearly translated (by anyone who knows even pig latin) "by a definitive act." This loose translation is highly significant for the document goes on to say that doctrines so defined, by a definitive act (definitivo actu), are "rightly said to be irreformable." This egregious error makes the whole translation highly suspect.This error has been used by liberals who contend that the ordination of women to the prieshood is still open. IT IS NOT!I recommend the Sixteen Documents of Vatican II by Pauline Books & Media, also available from Amazon.