Mahabharata 5.90.11

5.90.11

na pāṇḍavānāmasmābhiḥ pratideyaṃ yathocitam |
iti vyavasitāsteṣu vacanaṃ syānnirarthakam || 11 ||

The foolish Duryodhana of limited sight, having assembled a huge army regardeth, O slayer of Madhu, that his purposes are already achieved. The foolish son of Dhritarashtra hath arrived at the conclusion that Karna, single-handed, is competent to vanquish his foes. He will, therefore, never make peace. Thou, O Kesava, desirest to establish peace and brotherly feelings between the two parties. But know that all the sons of Dhritarashtra have come to the conclusion that they would not give unto the Pandavas what, indeed, the latter have a right to. With those that are so resolved thy words will certainly prove vain. Where, O slayer of Madhu, words, good or bad, are of the same effect, no wise man would spend his breath for nothing, like a singer before the deaf. As a Brahmana before a conclave of Chandalas, thy words, O Madhava, would command no respect among those ignorant and wicked wretches that have no reverence for all that deserveth reverence. Foolish, as long as he hath strength, he will never obey thy counsels. Whatever words thou mayest speak to him will be perfectly futile. It doth not seem proper to me, O Krishna, that thou shouldst go into the midst of these wicked-minded wretches seated together. It doth not seem proper to me, O Krishna, that going thither thou shouldst utter words against those wicked-souled, foolish, unrighteous wights, strong in number.