There is a lot of repetition in the social documents of the magisterium, partly because there seems to be an unwritten assumption on the part of later popes, a slightly odd one if you ask me, that none of their readers has bothered or will bother to read the earlier stuff, so each pope needs to spend a lot of time summarizing everything that came before. (firstthings.com)
The broad outlines of these positions have not been contradicted by later popes or councils. (religion-online.org)
For the young priest and later pope, even celibacy is understood in the light of matrimony, the sacrament by which the Creator revealed to humankind the communio of His own nature. (firstthings.com)