“It would not be impossible to prove with sufficient repetition and a psychological understanding of the people concerned that a square is in fact a circle. They are mere words, and words can be molded until they clothe ideas and disguise.” ~ Joseph Goebbels
As linked here but not expressly pointed out, this moral relativism applied to all knowledge is a misread of Rousseau originally, on the difficulty of objectivity and in-applicability to ALL subjects. Romantic as it is accurate. He was commenting on the Scientific Method and therefore, implicitly endorsing it. By discussing limits.
The opposite of epistemology is propaganda.
Maybe they don’t want us to read Mein Kampf because they’re using it like a manual, upside down?