People should be interested in books, not their authors.

Intuition is like reading a word without having to spell it out. A child can't do that because it has had so little experience. A grown-up person knows the word because they've seen it often before.

Until one looks back on one's own past one fails to realise what an extraordinary view of the world a child has.

Everyone likes talking about himself. - Hercule Poirot

Evil never goes unpunished, Monsieur. But the punishment is sometimes secret.

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.

Hasting - There are times when it is one's duty to assert oneself.