Those who are faithful know only the trivial side of love; it is the faithless who know love’s tragedies.

– Oscar Wilde

The Picture of Dorian Gray, Chapter 1. Lord Henry – much like Wilde himself – likes to be provocative with his paradoxical sayings. He comes out with this one in conversation with Basil, who has said that the personality of Dorian Gray will dominate him as long as he lives.