Mahabharata 3.149.26
न हि धर्ममविज्ञाय वृद्धाननुपसेव्य चधर्मो वै वेदितुं शक्यो बृहस्पतिसमैरपि
na hi dharmamavijñāya vṛddhānanupasevya cadharmo vai vedituṃ śakyo bṛhaspatisamairapi
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book