花开花谢花芳菲旧情旧人旧回忆
[huā kāi huā xiè huā fāng fēi jiù qíng jiù rén jiù huí yì]
Literally 'flower blooming flower falling flowery fragrances past love people and old memories'. This conveys bittersweet thoughts about changes over time – new beginnings, endings, lost romances or loved ones remembered fondly. Flower imagery in traditional Chinese culture signifies beauty changing over time.