"Science can purify religion from error and superstition. Religion can purify science from idolatry and false absolutes."
     – Pope John Paul II

False absolutes and idolatries like scientism (science is the only valid way of knowing), evolutionism (‘it’s real science, I swear! As sure as gravity’), feticide (‘it’s just a blob of cells, and it is better to kill it than to allow it to suffer’),  eugenics (‘we’re just helping Darwinism along, it’s for the good of the species’), slavery (‘of course they are less evolved!’), sexual permissiveness (‘people can’t be expected or encouraged to abstain, it’s against nature’ or ‘just because we can never produce progeny doesn’t mean that it’s unnatural’), etc.

Superstitions and errors like … [anti-religionists and thinkers (somewhat mutually exclusive groups), have a field day]