Katha Upanishad 3.5

यस्तु विज्ञानवान्भवति समनस्कः सदा शुचिः | स तु तत्पदमाप्नोति यस्माद्भूयो न जायते ॥

yas tu vijnanavan bhavati samanaskah sada shuchih | sa tu tat padam apnoti yasmad bhuyo na jayate ||

He who has understanding, who is ever pure and mindful — he reaches that state from which he is not born again.

जो विज्ञानी है, समनस्क है, सदा शुचि है — वह उस परम पद को प्राप्त करता है, जहाँ से पुनः जन्म नहीं होता।