Please forget everything that you have learned in school; for you haven't learned it.
Bitte vergiß alles was Du auf der Schule gelernt hast; denn Du hast es nicht gelernt.
Original text (German)
Original text (German)
Quote text and notes from Wikiquote: Edmund Landau (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.