I learned ... that one can never go back, that one should not ever try to go back - that the essence of life is going forward. Life is really a one way street, isn't it?
Curious things, habits. People themselves never knew they had them. [Witness for the Prosecution, also published in The Hound of Death and Other Stories.]
Women observe subconsciously a thousand little details, without knowing they are doing so. Their subconscious mind adds these little things together - and they call the result intuition.
Downstairs in the lounge, by the third pillar from the left, there sits an old lady with a sweet, placid, spinsterish face and a mind that has plumbed the depths of human iniquity and taken it all as in the day's work....where crime is concerned, she's the goods.
It often seems to me that's all detective work is, wiping out your false starts and beginning again." Yes, it is very true, that. And it is just what some people will not do. They conceive a certain theory, and everything has to fit into that theory. If one little fact will not fit it, they throw it aside. But it is always the facts that will not fit in that are significant.
There are more important things than finding the murderer. And justice is a fine word, but it is sometimes difficult to say exactly what one means by it. In my opinion, the important thing is to clear the innocent. - Hercule Poirot