Both Wang Dan and Kou Zhun were prime ministers with outstanding talents and outstanding political achievements in the period of Zhenzong of the Northern Song Dynasty. Once, Wang Dan sent official documents to Kou Zhun in a different way. Kou Zhun reported to the newspaper, Wang Dan was criticized by President Zhen, and his subordinates were punished. Soon, similar problems occurred in the official documents sent by Kou Zhun, and Wang Dan only sent them back to Kou Zhun, Ask him to correct it and then submit it. Kou Zhun is the one who speaks ill of Wang Dan at ordinary times, and Wang Dan basically praises Kou Zhun. Later, Kou Zhun was dismissed. He privately asked Wang Dan to be an envoy, and Wang Dan recommended him to the true Pope.
story illustrate?
Wang Dan has a clear distinction between public and private.