You know how a voice can stir one. Your voice and the voice of Sibyl Vane are two things that I shall never forget. When I close my eyes, I hear them, and each of them says something different. I don’t know which to follow.

– Oscar Wilde

The Picture of Dorian Gray, Chapter 4. Dorian feels that he is at a crossroads. He doesn’t know whether to follow the voice of good, that of the girl he loves Sibyl Vane, or the voice of evil and the amoral Lord Henry, who exerts a strong influence over his protege young Dorian.