Shloka 9
ज्योति: सर्वस्य लोकस्य विपुल प्रतिपद्यते । न त्वेव गमन॑ राजन् हेतुतो गमनं तथा । अग्राह्मुमनिबद्धं च वाचा सम्परिवर्जयेत्
jyotiḥ sarvasya lokasya vipula pratipadyate | na tveva gamanaṁ rājan hetuto gamanaṁ tathā | agrāhyam anibaddhaṁ ca vācā samparivarjayet |
毗湿摩说道：“当纯粹推理的戏论耗尽，丰饶的真实领悟便得以成就；此知成为照耀世间的最妙之光。然而，大王啊，仅凭辩论所得，并不能在同一意义上算作通向真理的可靠‘归趋’。因此，即便在言辞上，也应避开不可受持与无所凭据之说——尤其是未由权威教法所确立的种种主张。”
भीष्म उवाच
Educational Q&A
Bhīṣma teaches that mere logical argument (hetu/tarka) is not sufficient as a final authority for truth; genuine knowledge is a ‘light’ for the world and should be grounded in reliable pramāṇa—here, especially what is established by Vedic/scriptural authority—while unfounded or inadmissible claims should be avoided even in speech.
In the Anuśāsana Parva, Bhīṣma, lying on the bed of arrows, continues instructing King Yudhiṣṭhira on dharma. In this verse he cautions the king against treating bare reasoning as definitive knowledge and urges adherence to authoritative, well-established teachings.