μὴ ἐν πολλοῖς ὀλίγα λέγε, ἀλλ΄ ἐν ὀλίγοις πολλά → don't say little in many words, but much in a few words (Stobaeus quoting Pythagoras)
schlau, astūtus. – callidus (gescheit). – sehr schl., calliditatis extremae. – Adv. (= schlauerweise), callide; astute.