IGNORANCE
Quoting: Anonymous Coward 32723276 This is the Number one answer.
If you control the access to knowledge in a population,
you can establish a hierarchy and throttle a civilizations
development. When knowledge is equally disseminated,
Every task done for the betterment of the society is done as
a Master Piece.
Liberty also flourishes because with knowledge, superstition,
taboos, and, shame is removed. Behavior is looked at based on
what we really are. There is a distinct nature about the free
spirit of Man. Once freed, the understanding that his whole
lifes work is eternal.
But I digress, the Greatest weapon is indeed IGNORANCE. It
is by keeping a population ignorant of their own inherent
godhood, sovereignty, divinity, holy spirit, what ever you
want to call their own uniqueness and freedom of action.