The Compendium of Caraka 1.30.78

1.30.78

sadvṛttairna vigṛhṇīyādbhiṣagalpaśrutairapi /
hanyāt praśnāṣṭakenādāvitarāṃstvāptamāninaḥ //

A physician should not enter into hostile disputes with virtuous people, even if they are little-learned;
but at the outset, he should strike down the others, who fancy themselves authoritative, with the eightfold inquiry.