Adam and Eve by the Tree of Knowledge

13th Century Fresco depicting Adam & Eve at the Tree of Knowledge.
The tree appears modeled after an Amanita Muscaria mushroom.
Plaincourault Abbey (Indre, France)
From University of Hawai`i at Manoa

The oppression of knowledge is the suppression by force and/or violence often carried out by a government against its people for the preservation of power, control and capital.