Love is not everything ... It is only when we are young that we think it is.

I often wonder why the whole world is so prone to generalise. Generalisations are seldom if ever true and are usually utterly inaccurate.

If anyone is really determined to lend you a book, you never can get out of it!

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.

Poirot said placidly, “One does not, you know, employ merely the muscles. I do not need to bend and measure the footprints and pick up the cigarette ends and examine the bent blades of grass. It is enough for me to sit back in my chair and think. It is this – ” he tapped his egg-shaped head – “this, that functions!

She was a lucky woman who had established a happy knack of writing what quite a lot of people wanted to read.

Doctors can do almost anything nowadays, can't they, unless they kill you while they're trying to cure you.