Valmiki Ramayana Ayodhya Kanda Sarga 67 Shloka 36

अहो how great, राजा a king, साध्वसाधुनी good and evil actions, विभजन् showing the distinction, लोके in the world, न भवेद्यदि if it were not to happen, इदम् this, तमः स्यात् would be darkness, किञ्चन even a little, न प्रज्ञायेत could not have been known.

If the king did not show the distinction between the good and evil actions, this world would have been enveloped by darkness. Nothing could have been seen. How great (is the king)?