To put it quite crudely ... the poor don't really know how the rich live, and the rich don't know how the poor live, and to find out is really enchanting to both of them.
Women observe subconsciously a thousand little details, without knowing they are doing so. Their subconscious mind adds these little things together - and they call the result intuition.
I like to inquire into everything. Hercule Poirot is a good dog. The good dog follows the scent, and if, regrettably, there is no scent to follow, he noses around - seeking always something that is not very nice.
Do you believe in the value of truth, my dear, or don’t you?” “Of course I believe in the truth,” said Rhoda, staring. “Yes, you say that, but perhaps you haven’t thought about it. The truth hurts sometimes – and destroys one’s illusions.” “I’d rather have it all the same.” said Rhoda. “So would I. But I don’t know that we’re wise.” Mrs. Oliver; Rhoda Dawes
A man when he is making up to anybody can be cordial and gallant and full of little attentions and altogether charming. But when a man is really in love he can't help looking like a sheep.
Too much mercy... often resulted in further crimes which were fatal to innocent victims who need not have been victims if justice had been put first and mercy second.
Then there are some minor points that strike me as suggestive - for instance, the position of Mrs. Hubbard's sponge bag, the name of Mrs. Armstrong's mother, the detective methods of Mr. Hardman, the suggestion of Mr. MacQueen that Ratchett himself destroyed the charred note we found, Princess Dragomiroff's Christian name, and a grease spot on a Hungarian passport.