οὐκ ἐν τῷ πολλῷ τὸ εὖ, ἀλλ' ἐν τῷ εὖ τὸ πολύ → good is not found in plenty but plenty in good, quality matters more than quantity
certātor: ōris, m. id.,I a disputant (rare and post-class.), Gell. 12, 10, 3; App. Dogm. Plat. p. 2.