The head of the secret police in CS Lewis's That Hideous Strength tells one
of her students:
Ah, you fool, it's the educated reader who can be gulled.All of our difficulty comes with the others. When did you read a workman
who believes the papers?...But the educated public, who read the highbrow weeklies, don't need reconditioning. They're alright already. They'll believe anything.
And, Gandalf tells the assembled Captains of the West, as they prepare to
go into near-hopeless battle
Yet it is not our part to master all the tides of the world, but to do what is in us for the succour of those years wherein we are set, uprooting the evil in the fields that we know, so that those who live after may have clean earth to till. What weather they shall have is not ours to rule.
(Lord of the Rings, Book V)