two wrongs don't make a right

Proverb

 * 1)  A wrongful action is not a morally appropriate way to correct or cancel a previous wrongful action.

Translations

 * Chinese:
 * Mandarin: 冤冤相報永無完了
 * Esperanto: du eraroj ne faras rajton
 * Hungarian: az egyik fél vétsége nem teszi a másik vétségét semmissé
 * Italian: due torti non fanno una ragione
 * Polish: dwa zła nie czynią dobra
 * Portuguese: dois erros não fazem um acerto
 * Spanish: el fin no justifica los medios
 * Swedish: två fel gör inte ett rätt