Mahabharata 7.8.21
विद्यां यस्योपजीवन्ति सर्वलोकधनुर्भृतःस सत्यसंधो बलवान्द्रोणः किमकरोद्युधि
vidyāṃ yasyopajīvanti sarvalokadhanurbhṛtaḥsa satyasaṃdho balavāndroṇaḥ kimakarodyudhi
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book