"IGNORANCE IS CONTAGIOUS WHEN IT'S IGNORED"

“War is peace. 
Freedom is slavery. 
Ignorance is strength.” 
― George Orwell, 1984

https://www.goodreads.com/quotes/tag/ignorance

“Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.” 
― Martin Luther King Jr.

“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.” 
― Daniel J. Boorstin