Mahabharata 12.212.13

तेषु कर्मनिसर्गश्च सर्वतत्त्वार्थनिश्चयःतमाहुः परमं शुक्रं बुद्धिरित्यव्ययं महत्

teṣu karmanisargaśca sarvatattvārthaniścayaḥtamāhuḥ paramaṃ śukraṃ buddhirityavyayaṃ mahat

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