解释◎ 上梁不正下梁歪 shàngliáng bù zhèng xiàliáng wāi

[those in subordinate positions will follow the example set by their superiors;fish begins to stink at the head;when the upper beam is not straight,the lower ones will go aslant] 比喻地位或声誉高的人品行不好,下边的人也仿效而学坏

-----------------国语辞典上梁不正下梁歪shàng liáng bù zhèng xià liáng wāi ㄕㄤˋ ㄌㄧㄤˊ ㄅㄨˋ ㄓㄥˋ ㄒㄧㄚˋ ㄌㄧㄤˊ ㄨㄞ 比喻在上位的人或长辈行为不正，在下位的人或晚辈受其影响，也跟著行为不正。《金瓶梅．第二六回》：「正是上梁不正下梁歪！你既要干这营生，誓做了泥鳅怕污了眼睛，不如一狠二狠，把奴才结果了！」

英语 lit. If the upper beam is not straight, the lower beam will be crooked (idiom)​; fig. subordinates imitate their superiors' vices

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