குறள் 314

இன்னாசெய் தாரை ஒறுத்தல் அவர்நாண
நன்னயஞ் செய்து விடல்.

Stanza 314

Punish an evil – doer by  shaming him
With a good deed, and forget.

Meaning:

The (proper) punishment of those who have done evil (to you), is to put them to shame by showing great kindness to them.