The son of Dhritarashtra ought by no means to be addressed to in a conciliatory tone; I think that it is impossible to bring the illmatured Duryodhana to reason by peaceful means.
न तु वाच्यो मृदुवचो धार्तराष्ट्रः कथंचन। न हि मार्दवसाध्योऽसौ पापबुद्धिर्मतो मम॥