Kural - 1148

With butter-oil extinguish fire! 'Twill prove
Harder by scandal to extinguish love

Explanation
To say that one could extinguish passion by rumour is like extinguishing fire with ghee.

Tamil Transliteration
Neyyaal Erinudhuppem Endratraal Kelavaiyaal
Kaamam Nudhuppem Enal.