„”I saw a particular personage and I threatened him — yes, Mademoiselle, I, Hercule Poirot, threatened him.””With the police?””No,” said Poirot drily, “With the Press — a much more deadly weapon.”“

— Agatha Christie
„Mademoiselle,” I said, “it is sometimes difficult for a dog to find a scent, but once he has found it, nothing on earth will make him leave it! That is if he is a good dog! And I, mademoiselle, I, Hercule Poirot, am a very good dog.“
— Agatha Christie
„I like to inquire into everything. Hercule Poirot is a good dog.“
— Agatha Christie
„Hercule Poirot: I am an imbecile. I see only half of the picture.Miss Lemon: I don't even see that.“
— Agatha Christie
„Everyone likes talking about himself. - Hercule Poirot“
— Agatha Christie
„It would be difficult Bland thought, to forget Hercule Poirot, and this not entirely for complimentary reasons.“
— Agatha Christie
„“Well, what are you doing? What have you done?”“I am sitting in this char,” said Poirot. “Thinking,” he added.“Is that all?” said Mrs. Oliver.“It is the important thing,” said Poirot.“
— Agatha Christie
„I like to see an angry Englishman,” said Poirot. “They are very amusing. The more emotional they feel the less command they have of language.“
— Agatha Christie
„“You have been to the Riviera before, Georges?” said Poirot to his valet the following morning.George was an intensely English, rather wooden-faced individual.“Yes, sir. I was here two years ago when I was in the service of Lord Edward Frampton.”“And to-day,” murmured his master, “you are here with Hercule Poirot. How one mounts in the world!”“
— Agatha Christie
„Poirot," I said. "I have been thinking.""An admirable exercise my friend. Continue it.“
— Agatha Christie
„Tout de même,” said Poirot, “since I cannot find anything, eh bien, then the logic falls out of the window.“
— Agatha Christie
„Poirot twinkled at her gently.“
— Agatha Christie
„I don't think I shall ever forget my first sight of Hercule Poirot. Of course, I got used to him later on, but to begin with it was a shock, and I think everyone else must have felt the same! I don't know what I'd imagined — something like Sherlock Holmes — […] Of course, I knew he was a foreigner, but I hadn't expected him to be quite as foreign as he was, if you know what I mean. When you saw him you just wanted to laugh! He was like something on the stage or at the pictures. […] He looked like a hairdresser in a comic play!“
— Agatha Christie
„There’s no reason why women shouldn’t behave like rational beings,” said Simon stolidly.Poirot said dryly:“Quite frequently they do. That is even more upsetting!“
— Agatha Christie
„But how much are the delicate convolutions of the brain influenced by the digestive apparatus? When the mal de mere seizes me I, Hercule Poirot, am a creature with no grey cells, no order, no method — a mere member of the human race somewhere below average intelligence!“
— Agatha Christie
„The English are very stupid,” said Poirot. “They think that they can deceive anyone but that no one can deceive them.“
— Agatha Christie
„No, my friend, I am not drunk. I have just been to the dentist, and need not return for another six months! Is it not the most beautiful thought?--Poirot“
— Agatha Christie