翻译：中国有句古话：害人者终害己。

和中国古语相同的有 hoist with (by) one's own petard = 搬石头砸自己的脚，
害人反害己

evil man will be harmed by himself eventually

翻译：中国有句古话：害人者终害己。

Translate:

There is a Chinese proverb : perpetrators end up harming themselves.

当然,proverb可以换成Saying or Adage .

It is harmful for you to hurt others

支持:hoist with (by) one's own petard = 搬石头砸自己的脚