Suetonius, On Rhetoricians
1, quoting an edict of the censors Gnaeus Domitius Ahenobarbus and Lucius Licinius Crassus from
(tr. J.C. Rolfe):
Our forefathers determined what they wished their children to learn and what schools they desired them to attend. These innovations in the customs and principles of our forefathers do not please us nor seem proper.
maiores nostri, quae liberos suos discere et
quos in ludos itare vellent, instituerunt. haec nova, quae praeter
consuetudinern ac morem maiorum fiunt, neque placent neque recta videntur.
Also quoted by Aulus Gellius 15.11.2.