Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
(see also ἐνίστημι): set up, oppose
insistere, to stand on, persist, 3.23.1, [vulgo commonly αὐτοὶ ἐνστ.].obsistere, to withstand, resist, 8.69.2, [vulgo commonly ἐνίστηται]