Kural - 438

The greed of soul that avarice men call,
When faults are summed, is worst of all

Explanation
Griping avarice is not to be reckoned as one among other faults; (it stands alone - greater than all).

Tamil Transliteration
Patrullam Ennum Ivaranmai Etrullum
Ennap Patuvadhon Randru.