hmmm... leap of logic... sounds like I hit a nerve without knowing it.
I suppose it's where you look for your authority, for your source of truth - whether it's in the declarations of "The Church" or in the Word of God. I guess that might be where I struct the nerve...
Just for the record, I'm not Catholic but if you're going to start making declarations about who is and isn't a Christian, and by extension who is and isn't qualified to be a teacher or do scientific research then let's have a look at who is and isn't going to pass muster.