《宋史·列传·卷九十七》
譬如有人替他的主人放牧牲畜时，用一头牛换五只羊，一头牛的损失，就隐瞒而不说，五只羊的收获，却指为功劳成绩。
譬之有人为其主畜牧，以一牛易五羊。一牛之失，则隐而不言；五羊之获，则指为劳绩。
It is as if someone herding livestock for his master, who in exchange for one ox gets five sheep. The loss of an ox, is concealed, while the gain of five sheep, is presented as a success.