Mahabharata 12.136.43

अयमत्यन्तशत्रुर्मे वैषम्यं परमं गतःमूढो ग्राहयितुं स्वार्थं संगत्या यदि शक्यते

ayamatyantaśatrurme vaiṣamyaṃ paramaṃ gataḥmūḍho grāhayituṃ svārthaṃ saṃgatyā yadi śakyate

Our plain-language meaning of this verse is waiting for scholar review.