Good night, good night! parting is such sweet sorrow,
That I shall say good night till it be morrow.

– William Shakespeare

Romeo and Juliet, Act 2, Scene 2. At the end of the balcony scene Juliet bids goodnight to Romeo, because she doesn’t want to say goodbye. She uses an oxymoron when she describes the parting as "sweet sorrow." This indicates the bittersweet feeling of spending time with Romeo and then having to part with him. The play’s light and dark symbolism appears here, as Juliet acknowledges the division between day and night.