I am not beloved of Vatican I, which was the height of Pius IX's attempt to make the Church his own cult of personality. His intentions were good on the doctrinal side, but his means were flawed as were his epistemology. There is no such thing as authoritative absolute truth. Your standard can be objective reality or the whim of authority. Not both. Pius should have welcomed the advance of knowledge. Instead, he ran screaming from the room (both Pius).