《世说新语·排调》
刘真长初见丞相王导，当时是最热的月分，丞相把肚子贴在弹棋盘上，说： 怎么这么凉啊！ 
刘真长始见王丞相，时盛暑之月，丞相以腹熨弹棋局，曰： 何乃渹？ 
Liu Zhenchang had just met the prime minister Wang Dao, at the hottest time of the month, the prime minister put his stomach on the chessboard, and said: Why is it so cool!