Mahabharata 7.5.22

वर्णश्रैष्ठ्यात्कुलोत्पत्त्या श्रुतेन वयसा धियावीर्याद्दाक्ष्यादधृष्यत्वादर्थज्ञानान्नयाज्जयात्

varṇaśraiṣṭhyātkulotpattyā śrutena vayasā dhiyāvīryāddākṣyādadhṛṣyatvādarthajñānānnayājjayāt

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