BT Nid 20b(32) :יהודאי בתווני דליבא יתביתו ٠٠٠‏ : you, Jews, dwell in the chambers of the mind [i.e. are knowledgeable]
See the entire entry for ytb vb. to sit ; to dwell; to stay, remain

BT Nid 20b(32) :יהודאי בתווני דליבא יתביתו‏ : Jews, you dwell in the 'chambers of the mind' [i.e. are knowledgeable]
See the entire entry for tawwān, tawwānā n.m. chamber