Kural - 708

To see the face is quite enough, in presence brought,
When men can look within and know the lurking thought

Explanation
If the king gets those who by looking into his mind can understand (and remove) what has occurred (to him) it is enough that he stand looking at their face.

Tamil Transliteration
Mukamnokki Nirka Amaiyum Akamnokki
Utra Thunarvaarp Perin.