And that even if you can disagree, you are not to engage in public dissent regarding it.
See post 233 .
Do you instead affirm ascertaining the veracity of anything that is taught by examination of the warrant for it from your chosen authoritative documents?
Read Aquinas on authority:
http://www.newadvent.org/summa/3104.htm
Legitimate authority is confined to its proper sphere. If a person in authority steps outside that sphere, his authority does not bind.
It is not in any Pope’s power to modify the doctrine of the faith. He cannot command what Christ didn’t give him to command. So if he does so, it is proper to resist him.
If he stays within his own authority, then he should be obeyed. Say Francis put my parish under the interdict tomorrow because he doesn’t like the Latin Mass: told us we could not receive any sacraments. I would be bound to obey it, because that is a proper (though insanely unjust) exercise of authority.