Shloka 25
Jñāna-yoga and Karma-phala: Manu–Bṛhaspati on Akṣara and the Limits of Mantra
त्वंकारं नामधेयं च ज्येष्ठानां परिवर्जयेत् । अवराणां समानानामुभयेषां न दुष्यति,अपनेसे बड़ोंका नाम लेकर या तू कहकर न पुकारे, जो अपनेसे छोटे या समवयस्क हों, उनके लिये वैसा करना दोषकी बात नहीं है
tvaṃkāraṃ nāmadheyaṃ ca jyeṣṭhānāṃ parivarjayet | avarāṇāṃ samānānām ubhayeṣāṃ na duṣyati ||
ビーシュマは言った。「年長者を名で呼んだり、馴れ馴れしい『おまえ』（tvaṃ）で呼びかけたりしてはならない。だが年少者や同年の者に対しては、そのような言い方も双方にとって咎とはならぬ。この教えは、社会の作法において敬語がダルマの実践であることを示す。」
भीष्म उवाच
Educational Q&A
Respectful speech is part of dharma: do not address elders by name or with overly familiar ‘tvaṃ’; with juniors or equals, such address is not inherently blameworthy.
In Śānti Parva’s instruction on righteous conduct, Bhīṣma lays down a rule of etiquette and moral discipline regarding how one should speak to elders, equals, and juniors.