Vi pripadate Ligi naroda?
-Ja pripadam cijelom svijetu, madame, reče Poirot dramatično.

Rest assured," said Hercule Poirot. "I am the best!

Put that in your mustache and smoke it.

Use your little grey cells mon ami"
(Hercule Poirot in 'The Mysterious Affair At Styles')

Ah, but life is like that! It does not permit you to arrange and order it as you will. It will not permit you to escape emotion, to live by the intellect and by reason! You cannot say, 'I will feel so much and no more.' Life, Mr. Welman, whatever else it is, is not reasonable. [Hercule Poirot]

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.