We have heard that the texts of morality cannot be understood by either discussion or one's own intelligence. Indra himself has said that such is the opinion of the sage Brihaspati.
न धर्मवचनं वाचा नैव बुद्ध्येति नः श्रुतम्। इति बार्हस्पतं ज्ञानं प्रोवाच मघवा स्वयम्॥