(noun) A stupid person; a fool.
"Stupidity in a woman is unfeminine."
"Three great forces rule the world: stupidity, fear and greed."
"One repays a teacher badly if one always remains nothing but a pupil."
"Fear is stupid, so are regrets."
"We are all born ignorant, but one must work hard to remain stupid."
"Whenever a man does a thoroughly stupid thing, it is always from the noblest motives."
"When a stupid man is doing something he is ashamed of, he always declares that it is his duty."
"There is no sin except stupidity."