Kural - 432

A niggard hand, o'erweening self-regard, and mirth
Unseemly, bring disgrace to men of kingly brith

Explanation
Avarice, undignified pride, and low pleasures are faults in a king.

Tamil Transliteration
Ivaralum Maanpirandha Maanamum Maanaa
Uvakaiyum Edham Iraikku.