She says 'You don't know what brings a person to a book', and it's taken very seriously, almost like a priest or a doctor. A librarian would also likely die by torture before they'd divulge someone's reading history.
Madness string 102453
I don't think anyone really has ideals. What we have is a tangled mess of ad-hoc opinions, constantly sliding past each other in search of a position that favours itself the most, like a 5-gallon bucket of earthworms.