Kural - 1078

The good to those will profit yield fair words who use;
The base, like sugar-cane, will profit those who bruise

Explanation
The great bestow (their alms) as soon as they are informed; (but) the mean, like the sugar-cane, only when they are tortured to death.

Tamil Transliteration
Sollap Payanpatuvar Saandror Karumpupol
Kollap Payanpatum Keezh.