Plots come to me at such odd moments, when I am walking along the street, or examining a hat shop… suddenly a splendid idea comes into my head..

Sitting here with one's knitting, one just sees the facts. -"The Blood-Stained Pavement.

Lie is more worth living, more full of interest when you are likely to lose it. It shouldn't be, perhaps, but it is. When you're young and strong and….

all women, without in the least meaning it, consider every man they meet as a possible husband for themselves or for their best friend..

Jealousy, you know, is usually not an affair of causes. It is much more-how shall I say?-fundamental than that. Based on the knowledge that one's lov….

From an early age I knew very strongly the lust to kill..

To every problem, there is a most simple solution..

No sign, so far, of anything sinister—but I live in hope..

Liking is more important than loving. It lasts. I want what is between us to last, Luke. I don't want us just to love each other and marry and get ti….

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

I specialize in murders of quiet, domestic interest..

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

I have a certain experience of the way people tell lies..

You cannot mix up sentiment and reason..

Your not reliable. You wouldn't be at all a comfortable sort of person to live with..

One must make one's own mistakes.

That was what, ultimately, war did to you. It was not the physical dangers--the mines at sea, the bombs from the air, the crisp ping of a rifle bulle….

Crime is terribly revealing. Try and vary your methods as you will, your tastes, your habits, your attitude of mind, and your soul is revealed by you….

If we seek to keep the past alive, we end, I think, by distorting it..

The young people think the old people are fools -- but the old people know the young people are fools..

The trouble with you and me, is that we don't live in the real world. We dream of fantastic things that may never happen..