One day, Mencius asked Dai Busheng, "If a high official from the state of Chu wishes for his son to learn the Qi dialect, should he be taught by a Qi native or a Chu native?"
Dai Busheng replied, "He should be taught by a Qi native."
Mencius said, "Indeed, it is beneficial to have a Qi native teach him. However, if he is constantly surrounded by his Chu countrymen speaking their own dialect, even with the threat of a whip, it will be difficult for him to master Qi. But if you let him live in the neighborhoods of Qi for several years, then it would be impossible to force him, even with a whip, to speak Chu dialect again."