以邻为壑

战国时期，魏国有个叫公孙鞅的人，他为了巩固自己的权力，不顾百姓死活，强令修建大型水利工程。工程完成后，他将多余的水排向邻国，导致邻国发生水灾。百姓怨声载道，公孙鞅却毫不在乎，他认为只要魏国安然无恙，牺牲邻国也在所不惜。这便是“以邻为壑”的典故。

zhanguoshiqi,weiguo you ge jiao gongsun yang de ren,ta wei le gonggu ziji de quanli,bugù baixing sihuo,qiangling xiujiandaxing shuili gongcheng.gongcheng wancheng hou,ta jiang duoyude shui paixiang lingguo,daozhi lingguo fasheng shuizai.baixing yuansheng zaidao,gongsun yang que hao buzaihu,ta renwei zhi yao weiguo anran wu yang,xisheng lingguo ye zai suobuxi.zhe bian shi "yilinweihè" de diangu.

During the Warring States period, there was a man in Wei named Gongsun Yang. To consolidate his power, he ordered the construction of a large water conservancy project regardless of people's lives. After the project was completed, he diverted the excess water to neighboring countries, causing floods in the neighboring countries. The people complained, but Gongsun Yang didn't care. He thought that as long as Wei was safe, it didn't matter if neighboring countries suffered. This is the origin of the idiom "Yǐ lín wéi hè".

用于比喻只顾自己一方的利益，把困难或祸害转嫁给别人。

yongyu biju zhigu ziji yifang de liyi,ba kunnan huo huohài zhuǎnjià gěi biérén.

It is used to illustrate that one only considers one's own interests and transfers difficulties or harm to others.