Kural - 520

Let king search out his servants' deeds each day;
When these do right, the world goes rightly on its way

Explanation
Let a king daily examine the conduct of his servants; if they do not act crookedly, the world will not act crookedly.

Tamil Transliteration
520 Naatorum Naatuka Mannan Vinaiseyvaan
Kotaamai Kotaa Thulaku.