Kural - 1044

From penury will spring, 'mid even those of noble race,
Oblivion that gives birth to words that bring disgrace

Explanation
Even in those of high birth, poverty will produce the fault of uttering mean words.

Tamil Transliteration
Irpirandhaar Kanneyum Inmai Ilivandha
Sorpirakkum Sorvu Tharum.