“Il y a des questions naïves, des questions fastidieuses, des questions mal formulées, des questions posées sans avoir tourné sept fois la langue dans sa bouche. Mais toute question est une prière pour comprendre le monde. Il n'existe pas de question stupide.”
En anglais : "There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question."
Carl Sagan, The Demon-Haunted World : Science as a Candle Dark, New York, Ballantine Books, 1996.