when someone has done something bad to you, trying to get revenge will only make things worse.
zemsta nic nie daje
Mike: I'd really like to humiliate Monica, after she made fun of me in front of everyone.
Tim: Stop it, Mike. Two wrongs don't make a right.
Wyrażenie pojawiło się po raz pierwszy w 1734 roku w wierszu opublikowanym w The London Magazine.
An orient star led, thro' his blind-
Side, to a prize his eye of mind:
The lightning said, its he; in Spight
Of fate two wrongs infer one right.
let fly; well shot! thanks to my Spark;
A blind boy, once, has cleft the mark.
https://en.wikipedia.org/wiki/Two_wrongs_make_a_right