Every man should have aunts. They illustrate the triumph of guess work over logic.

One knows so little. When one knows more it is too late.

But I know human nature, my friend, and I tell you that, suddenly confronted with the possibility of being tried for murder, the most innocent person will lose his head and do the most absurd things.

Everybody always knows something," said Adam, "even if it's something they don't know they know.

You want beauty,' said Hercules Poirot. 'Beauty at any price. For me, it is truth. I want always truth.

There is nothing so dangerous for anyone who has something to hide as conversation!... A human being, Hastings, cannot resist theopportunity to reveal himself and express his personality which conversation gives him. Every time he will give himself away.

Bitterness leads nowhere. It turns back on itself. It is the eternal cul-de-sac.