I always think loyalty's such a tiresome virtue.

You regard it as impossible that a sinner should be struck down by the wrath of God! I do not!

The whole thing was like a nine-month ocean voyage to which you never got acclimatized.

No, my friend, I am not drunk. I have just been to the dentist, and need not return for another six months! Is it not the most beautiful thought? --Poirot

Achievement brings with it its own anticlimax.

Vous eprouves trop d'emotion, Hastings, It affects your hands and your wits. Is that a way to fold a coat? And regard what you have done to my pyjamas. If the hairwash breaks what will befall them?' 'Good heavens, Poirot,' I cried, 'this is a matter of life and death. What does it matter what happens to our clothes?' 'You have no sense of proportion Hastings. We cannot catch a train earlier than the time that it leaves, and to ruin one's clothes will not be the least helpful in preventing a murder.

Things go entirely differently from the way you planned them.