— Paul Valéry French poet, essayist, and philosopher 1871 - 1945
Context: Stupidity is not my strong point. I have seen many persons; I have visited several countries; I have taken part in various enterprises without liking them; I have eaten nearly every day; I have had women. I can now recall a few hundred faces, two or three great spectacles, and the substance of perhaps twenty books. I have not retained the best nor the worst of these things: what could stay with me did. Variant translations: Stupidity is not my strong suit.
— Marilyn Manson, The Long Hard Road Out of Hell
— John Lydon, Rotten: No Irish, No Blacks, No Dogs
— Martin Luther King, Jr. American clergyman, activist, and leader in the American Civil Rights Movement 1929 - 1968
Ch. 4 : Love in action, Sct. 3
„The real question of life after death isn't whether or not it exists, but even if it does what problem this really solves.“
— Ludwig Wittgenstein Austrian-British philosopher 1889 - 1951
— Arthur Conan Doyle, The Memoirs of Sherlock Holmes
„Youth ages, immaturity is outgrown, ignorance can be educated, drunkenness sobered, but stupid lasts forever.“
— Aristophanés Athenian playwright of Old Comedy -446 - -385 a.C.
Fictional attribution in the movie The Emperor's Club (2002), given by Kevin Kline (as William Hundert); no published occurrences of this statement prior to the movie have been located in any of the Aristophanes Plays or Fragments.