Sāmaṁ vā dhammaṁ bhāsati paraṁ vā ajjhesati ariyaṁ vā tuṇhībhāvaṁ nātimaññati.  Either they talk on Dhamma, or they invite someone else to do so, or they respect noble silence. 
Sāmaṁ vā dhammaṁ bhāsati paraṁ vā ajjhesati ariyaṁ vā tuṇhībhāvaṁ nātimaññati. 
Either they talk on Dhamma, or they invite someone else to do so, or they respect noble silence. 

dhammī vā kathā ariyo vā tuṇhībhāvo.  discuss the teachings or keep noble silence. 

dhammī vā kathā, ariyo vā tuṇhībhāvo.  discuss the teachings or keep noble silence. 

‘ariyo tuṇhībhāvo, ariyo tuṇhībhāvoti vuccati.  ‘They speak of this thing called “noble silence”. 
Katamo nu kho ariyo tuṇhībhāvo’ti? 
What then is this noble silence?’ 
Ayaṁ vuccati ariyo tuṇhībhāvo’ti. 
This is called noble silence.’ 
‘moggallāna moggallāna, mā, brāhmaṇa, ariyaṁ tuṇhībhāvaṁ pamādo, ariye tuṇhībhāve cittaṁ saṇṭhapehi, ariye tuṇhībhāve cittaṁ ekodibhāvaṁ karohi, ariye tuṇhībhāve cittaṁ samādahā’ti. 
‘Moggallāna, Moggallāna! Don’t neglect noble silence, brahmin! Settle your mind in noble silence; unify your mind and bring it to immersion in noble silence.’