What, man! ne’er pull your hat upon your brows;
Give sorrow words: the grief that does not speak
Whispers the o’er-fraught heart and bids it break.
– William Shakespeare
Macbeth, Act 4, Scene 3. Malcolm tells a speechless Macduff that he should give voice to his pain over the slaughter of his family. Unspoken grief leads to a broken heart, he warns. He speaks this as Macduff pulls his hat down over his brows, apparently to hide his tears. Grief is personified in this passage.