„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

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„I like to inquire into everything. Hercule Poirot is a good dog.“
— Agatha Christie
„"Like a dog!" he said, it was as if the shame of it should outlive him.“
— Franz Kafka