Udyoga-parva Adhyāya 123 — Bhīṣma–Droṇa–Vidura Upadeśa to Duryodhana
Keśava-vākya aftermath
न चैते तव पर्याप्ता ज्ञाने धर्मार्थयोस्तथा
na caite tava paryāptā jñāne dharmārthayos tathā
And these words (or arguments) of yours are not sufficient either, when it comes to true understanding—whether of dharma or of artha (practical interest and policy).
वैशम्पायन उवाच
Mere assertions are not enough: one must have adequate, well-grounded understanding to speak convincingly about both dharma (ethical right) and artha (practical policy and welfare).
In the Udyoga Parva’s deliberative setting, the speaker frames a critique: the other party’s reasoning is judged insufficient on the two key axes that guide action in the epic—moral duty (dharma) and pragmatic interest (artha).