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)
bitterly: P. and V. πικρῶς.
jestingly: P. μετὰ παιδιᾶς.