Mahabharata 13.82.47
विद्यार्थी प्राप्नुयाद्विद्यां सुखार्थी प्राप्नुयात्सुखम्न किंचिद्दुर्लभं चैव गवां भक्तस्य भारत
vidyārthī prāpnuyādvidyāṃ sukhārthī prāpnuyātsukhamna kiṃciddurlabhaṃ caiva gavāṃ bhaktasya bhārata
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book