Mahabharata 13.47.61

एवं जातिषु सर्वासु सवर्णाः श्रेष्ठतां गताःमहर्षिरपि चैतद्वै मारीचः काश्यपोऽब्रवीत्

evaṃ jātiṣu sarvāsu savarṇāḥ śreṣṭhatāṃ gatāḥmaharṣirapi caitadvai mārīcaḥ kāśyapo'bravīt

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