Thirukkural

தக்காங்கு நாடித் தலைச்செல்லா வண்ணத்தால் ஒத்தாங்கு ஒறுப்பது வேந்து.

Thakkaangu Naatith Thalaichchellaa Vannaththaal Oththaangu Oruppadhu Vendhu

He is a king who having equitably examined (any injustice which has been brought to his notice), suitably punishes it, so that it may not be again committed