- Hercule Poirot: I must tell you, Madam, I have been all my life uncharmed by your kind.
- Mrs. Reynolds: My kind?
- Hercule Poirot: Opportunists who prey on the vulnerable.
- Mrs. Reynolds: You don't believe in the soul's endurance after death.
- Hercule Poirot: I have lost my faith.
- Mrs. Reynolds: How sad for you.
- Hercule Poirot: Yes, it is most sad. The truth is sad.
- Hercule Poirot: You woke the bear from his sleep. You cannot cry when he tangos.
- Ariadne Oliver: That's not an expression in any language.
- Rowena Drake: [Poirot reveals her guilt in her daughter's death] How Dare You
- [last lines]
- Rowena Drake: [justifying her actions to Poirot] I Couldn't Let Her Go... She Was My Whole World
- [lighting flash reveals Alicia standing behind her in front of Poirot]
- Maxime Gerard: [outraged on learning Alicia's true fate] You Took Her From Me?
- Rowena Drake: [venomously] To Keep *Her* Away From *You*!
- Hercule Poirot: When a crime has been committed, I can, by application of order and method and the slow extinguishing of my own soul, find without fail or doubt, whodunit.
- Hercule Poirot: I know only that we cannot hide from our ghosts, whether they are real or not, we must make our peace with them, and live life somehow.