Home » Quote » Robert A. Heinlein » „Ignorance is curable, stupid is forever.“ „Ignorance is curable, stupid is forever.“ — Robert A. Heinlein Tags:Stupidity Related quotes „Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.“ — Carl Sagan „Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.“ — Jr. „School teachers, taking them by and large, are probably the most ignorant and stupid class of men in the whole group of mental workers.“ — H.L. Mencken „You ignorant little slug!" the Trunchbull bellowed. "You witless weed! You empty-headed hamster! You stupid glob of glue!“ — Roald Dahl „Ignorance means you didn’t have the necessary knowledge. A person can hardly be blamed for that. Stupidity is the result of knowing what to do but not acting upon that knowledge.“ — John C. Maxwell