You have the most marvellous youth, and youth is the one thing worth having…Some day, when you are old and wrinkled and ugly, when thought has seared your forehead with its lines, and passion branded your lips with its hideous fires, you will feel it, you will feel it terribly.
– Oscar Wilde
The Picture of Dorian Gray, Chapter 2. Lord Henry spells out to Dorian the transient nature of his youthful beauty. He doesn’t hold back in letting him know that some day his beautiful face will become old and wrinkled and ugly.