Thirukkural

நன்மையும் தீமையும் நாடி நலம்புரிந்த தன்மையான் ஆளப் படும்.

Nanmaiyum Theemaiyum Naati Nalampurindha Thanmaiyaan Aalap Patum

He should be employed (by a king), whose nature leads him to choose the good, after having weighed both the evil and the good in any undertaking