Unless you are good at guessing, it is not much use being a detective.

I've got a stomach now as well as a behind. And I mean - well, you can't pull it in both ways, can you? ... I've made it a rule to pull in my stomach and let my behind look after itself.

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.

When you find that people are not telling you the truth---look out!

What they need is a little immorality in their lives. Then they wouldn't be so busy looking for it in other people's.

That is what I mean. A bath! The receptacle of porcelain, one turns the taps and fills it, one gets in, one gets out and ghoosh - ghoosh - ghoosh, the water goes down the waste pipe!" "M. Poirot are you quite mad?" "No, I am extremely sane.

Talk and tea is his specialty," said Giles. "He has about five cups of tea a day. But he works splendidly when we are looking.