2) So you believe in the Assumption but not the Immaculate Conception or the perpetual virginity of the BVM? Based on what? The Bible is silent on the Assumption, it comes to us from Tradition.
4) In the interests of full disclosure, my best friend is a priest so I cheated on this question by calling and asking him, he directed me to a book titled The Apostolic Origins of Priestly Celibacy but my google-fu led me to this link at the Vatican website and This rather long article at OSV and This at CUF which begins:
"Through the media we repeatedly hear from dissenting theologians and commentators that priestly celibacy is a rule which the Catholic Church has “inflicted” on her clergy only since the 11th or 12th century. That is false. Here are the facts."
Just google "Apostolic Origins of Priestly Celibacy" and you'll find tons of stuff.
Read Timothy 3:2
“A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behavior, given to hospitality, apt to teach.”
The Bible is not silent that Mary ascended into heaven after her death. The Bible says nothing about her birth.
The fact is the Church took many centuries to implement its current policy of clerical celibacy. For a quick reference to see how, when, and why the policy was instituted, go to Wikipedia.com. Type in clerical celibacy.
There you might find a somewhat more unbiased account.
The Athanasian Creed
Whoever wishes to be saved must, above all, keep the CATHOLIC faith.
This sure says enough for me!