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

Who are you? You don't belong to the police?' 'I am better than the police,' said Poirot. He said it without conscious arrogance. It was, to him, a simple statement of fact.

There is no greater mistake in life than seeing things or hearing them at the wrong time.

One of the oddest things in life, as we all know, is the way that when you have heard a thing mentioned, within twenty-four hours you nearly always come across it again.

I'm sorry, but I do hate this differentiation between the sexes. The modern girl has a thoroughly businesslike attitude to life! That sort of thing. It's not a bit true! Some girls are businesslike and some aren't. Some men are sentimental and muddle-headed, others are clear-headed and logical. There are just different types of brains.

If I were at any time to set out on a career of deceit, it would be of Miss Marple that I should be afraid.

The out-of-date returns in due course as the picturesque.