Kural - 220

Though by 'beneficence,' the loss of all should come,
'Twere meet man sold himself, and bought it with the sum

Explanation
If it be said that loss will result from benevolence, such loss is worth being procured even by the sale of one's self.

Tamil Transliteration
Oppuravi Naalvarum Ketenin Aqdhoruvan
Vitrukkol Thakka Thutaiththu.