李南公知长沙县,有斗者甲强乙弱,名有青赤。南公召使前,以指捏之,乙真甲伪也。诘之果服。盖方有榉柳,以叶涂肤则青赤如殴伤者。剥其皮横置肤上,以火熨之,则如棒伤者,水洗不落。南公曰:“殴伤者,血聚而硬,閟伪者不然,故知之。” Li Nan known Changsha County, a fight A strong B weak, name is red. South Gong Zhao, to pinch the, B really A pseudo-also.诘 fruit service. There are beech cover on the side, the leaves are painted blue red as a beating injured. Peel their skin across the skin, the iron to the fire, then, such as wounded, washed do not fall. South public said: “beaten people, blood together hard, pseudo-false otherwise, so know.”