- Nurse Hopkins: As I said before, Mr. Poirot, let the dead rest in peace.
- Hercule Poirot: Not when one has to consider the living.
- Elinor Carlisle: It is certainly hard when the accident of another person's return - another person's beauty suddenly destroys your love
- Roddy Winter: [referring to Germany] I think the National Socialists are doing quite a fair job over there. I sometimes wish we had politicians like that here.
- Hercule Poirot: I think, monsieur, that you are most fortunate you do not.
- Roddy Winter: Do you? Oh, it's much too pleasant an occasion for European politics.
- Dr. Peter Lord: [referring to Hercule Poirot] He has some peculiarities, like his endless herbal teas. He's charming and very, very discreet.
- Hercule Poirot: So here is yet another lie, eh? But why? Was it because you feared for Elinor Carlisle? Was it your heart I could forgive or something much more sinister?
- Elinor Carlisle: It is certainly hard when the accident of another person's return, of... another person's beauty... suddenly destroys your life.
- Hercule Poirot: D'accord. But then, a man who is swayed by such things is not likely to be constant, is that not so?
- Hercule Poirot: You see, it troubles you also, my dear doctor, that the glass, it is poured, it is perfect in every way, and yet I choose not to drink. I wait, and this troubles you.
- Dr. Peter Lord: What are you thinking?
- Hercule Poirot: About action that is uncompleted. Action that is suspended. Like this. Pouring without drinking. And yet, surely, once it is poured, it will be drunk, eh? But, no. And it is the same here for crime. It can be like this also.
- Mrs. Welman: Now, look here, doctor, I've said this before. In any civilized country, I'd just say I wanted to end it all and you would finish me off with some nice, painless drug.
- Dr. Peter Lord: Well, I'm not sure I wish to be hanged just yet. Now, you're doing so well. Leave me all your money, I might reconsider, if you like.
- Hercule Poirot: There are certain things one should not say, but nevertheless, a detective, he is forced to say, to ask about the feelings of people.
- Elinor Carlisle: Aunt Laura, tell me something -honestly. Do you think love is ever a happy thing?
- Mrs. Welman: Oh, Elinor. Perhaps it always brings more sorrow than joy. But who could do without it? Anyone who has never really loved hasn't lived.
- Hercule Poirot: I sense, in my heart, the inevitability. And yet, what can I Poirot do, hmm? Nothing.
- Roddy Winter: The Cartwright trial is causing great excitement.
- Hercule Poirot: Indeed. For me, alas, it is like eating the same meal three times a day.
- Hercule Poirot: "But she is in her grave, and oh, the difference to me." Wordsworth. I read him much.
- Mrs. Welman: And I'm so p-pleased you and Roddy are together. You do care for him?
- Elinor Carlisle: Of course I do.
- Mrs. Welman: Enough and not too much.
- Elinor Carlisle: What?
- Mrs. Welman: Oh, it's just something... we used to say. How you should never care too much for a man.
- Hercule Poirot: [referring to himself] M. Horlick, you see before you a miserable animal who has been a triple imbecile. I am 36 times an idiot.
- Hercule Poirot: But then, suddenly, I realized how stupid I had been! Ah! I, Hercule Poirot, had followed my reasoning, yes, but I had failed to take into account the madness of the English palate. For, gentlemen, what do we find? We find that we are entering into the realms of lunacy. I do not care if our murderer had the palate of a master chef. He could never distinguish between these slurries. It is a fact these sandwiches are all but indistinguishable.