Kural - 248

Who lose the flower of wealth, when seasons change, again may bloom;
Who lose 'benevolence', lose all; nothing can change their doom

Explanation
Those who are without wealth may, at some future time, become prosperous; those who are destitute of kindness are utterly destitute; for them there is no change.

Tamil Transliteration
Porulatraar Pooppar Orukaal Arulatraar
Atraarmar Raadhal Aridhu.