- Janine Du Bois: [about the disappearance of Margo] But that's terrible. What could have happened?
- Inspector Legris: Quite a number of things could have happened, Man'selle, and it's up to me to find out the one that did.
- Janine Du Bois: But, George, you just can't stand there and tell me that you're going away and never coming back without giving me an explanation.
- Dr. Georges Bonner: My work makes it necessary.
- Janine Du Bois: Because you're a doctor?
- Dr. Georges Bonner: Yes, partly. I have to travel where no one has been before I want to lift the curtain of life and see what is beyond.
- Dr. Georges Bonner: [Before unveiling the bust] I would like to say at this stage that any credit due for what you are about to see should be laid at the feet of my charming young model. An artist cannot form a thing of beauty unless he has a thing of beauty from which to draw inspiration.
- Dr. Georges Bonner: [Threatening Pierre] It will be extremely unfortunate if I don't survive this surgery.
- Margo Philippe: [Frightened, as Bonner metamorphisizes] Your eyes! What's the matter with your eyes?
- Dr. Georges Bonner: [to Weiss] You're old. You can see death staring you in the face, but I can't. I'm not going to die!