11 октября 1922 года родилось словесное клише «грызть гранит науки»

On this day, Leon Davidovich Trotsky made a report at the V Congress of Russian Komsomol. Among other things, the speaker said: “Learn, gnaw young teeth with a granite of science, temper and get ready for a shift!” They listened to the “Lion of the Revolution” and remembered the line: since then, granite has been gnawed. And they don’t even know that they are quoting Trotsky.