„Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.“

— Jr.

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„There's nothing more dangerous than someone who wants to make the world a better place.“
— Banksy
„Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.“
— Carl Sagan
„Ignorance is curable, stupid is forever.“
— Robert A. Heinlein