"Nothing is covered up that will not be uncovered, and nothing secret that will not become known. Therefore whatever you have said in the dark will be heard in the light, and what you have whispered behind closed doors will be proclaimed from the rooftops."
Luke 12:2-3
"Over the pope as expression of the binding claim of ecclesiastical authority, there stands one’s own conscience which must be obeyed before all else, even if necessary against the requirement of ecclesiastical authority. This emphasis on the individual, whose conscience confronts him with a supreme and ultimate tribunal, and one which in the last resort is beyond the claim of external social groups, even the official church, also establishes a principle in opposition to increasing totalitarianism."
Joseph Ratzinger, Commentary on the Documents of Vatican II, 1967