You can dine with me to-night, Dorian, can’t you?"
He shook his head. "To-night she is Imogen," he answered, "and to-morrow night she will be Juliet.
"When is she Sibyl Vane?"
"I congratulate you."

– Oscar Wilde

The Picture of Dorian Gray, Chapter 4. The theme of appearances is dealt with here as Dorian tells Lord Henry of the different stage roles Sibyl plays. Asked when is she Sibyl, Dorian replies never – he is in love with her art and not Sibyl the person. The shallow Henry, a man who values only the appearance of things, congratulates Dorian.