| Quote #4
HOLOFERNES: I will prove those verses to be very unlearned, neither savouring of poetry, wit, nor invention. I beseech your society. (4.2.43)
Holofernes will critique Berowne's letter in depth. These two have in common that they can't stand any writing but their own.
| Quote #5
BEROWNE: By heaven, I do love; and it hath taught me to rhyme, and to be melancholy; and here is part of my rhyme, and here my melancholy. (4.3.1)
Just a few lines earlier, Berowne was calling to be hanged if he loves. But here he accepts his love and begins to understand emotionally his own argument in the first scene – that love can bring knowledge, too.
| Quote #6
LONGAVILLE: I fear these stubborn lines lack power to move.
Longaville suffers a writer's insecurity and thinks he should give up on this poetry stuff. By "numbers" he means the meter in his poem.