- Lord Henry Wotton: There's no shame in pleasure. Man just wants to be happy. But society wants him to be good. And when he's good, he's rarely happy. But when he's happy, he's always good.
- Lord Henry Wotton: What are you?
- Dorian Gray: I am what you made me! I lived the life that you preached but never dared practice. I am everything that you were too afraid to be.
- Dorian Gray: [On a girl he saw, who just departed with a man] That was probably her husband.
- Lord Henry Wotton: Yes, very sensible. People die of common sense, Dorian, one lost moment at a time. Life is a moment. There is no hereafter. So make it burn always with the hardest flame.
- Emily Wotton: I hope I'm not interrupting your reminiscence?
- Lord Henry Wotton: One charm of the past, is that it's the past.
- Emily Wotton: Hmm... I hope you're not also a dreary old cynic?
- Dorian Gray: What is there to believe in?
- Emily Wotton: Our developments.
- Dorian Gray: All I see is decay.
- Emily Wotton: For the religion!
- Dorian Gray: Fashionable substitute for belief.
- Emily Wotton: Art?
- Dorian Gray: A malady.
- Emily Wotton: Love?
- Dorian Gray: An illusion.
- Lord Henry Wotton: Bravo!
- Emily Wotton: Well... you both cut the world to pieces, don't you? Thank you for the cigarette!
- Dorian Gray: Unusual woman.
- Lord Henry Wotton: She ought to be... she's my daughter.
- Dorian Gray: [trying to decline women and drink at a brothel] Well, perhaps I have a stronger conscience.
- Lord Henry Wotton: [dismissively] 'Conscience.' It's just a polite word for 'cowardice.' No civilized man regrets a pleasure.
- Emily Wotton: Oblige me, Mr. Gray.
- Dorian Gray: Have you been pursuing this delightful hobby for long?
- Emily Wotton: No, it's a gift from my father. In return he made me promise that I wouldn't chain myself to any more railings.
- [pause]
- Emily Wotton: For suffrage, Mr. Gray. Well, don't you think that woman should be given the vote?
- Dorian Gray: I don't believe a woman should be given anything she can't wear in the evening.
- Emily Wotton: Ha, what a loss to the front you are. Think of all those Germans that you could bayonet with your epigrams.
- Dorian Gray: I do apologize if I offend.
- Emily Wotton: Oh no, you'll have to do rather better to offend me.
- Dorian Gray: Then I humbly vow to re-double my efforts.
- Lord Henry Wotton: I must ask you though, what is your secret?
- Dorian Gray: If I told you, I'd have to kill you.
- Lord Henry Wotton: The only way to behave to a woman is to make love to her if she is pretty and to someone else if she is plain.
- Lord Henry Wotton: [about the painting] It must be nearly finished, man. It isn't the Sistine Chapel.
- Lady Victoria Wotton: Harry, I've found some more guests for you to insult.
- Lord Henry Wotton: I knew I kept her for something.