Kural - 528

Where king regards not all alike, but each in his degree,
'Neath such discerning rule many dwell happily

Explanation
Many relatives will live near a king, when they observe that he does not look on all alike, but that he looks on each man according to his merit.

Tamil Transliteration
Podhunokkaan Vendhan Varisaiyaa Nokkin
Adhunokki Vaazhvaar Palar.