Hastings: I've never known you place much faith in intuition.
Poirot: "Intuition, Hastings, often describes some fact that is so deeply buried in the subconscious, that the subject is not aware of its existence."
Hastings: "What fact?"
Poirot: "Tres Biene, Hastings. If I knew that, the case---it would be solved."
(Agatha Christie, "The Underdog")
