Books are a habit-forming drug.

There hung about her the restrained energy of a whiplash.

Poirot," I said. "I have been thinking." "An admirable exercise my friend. Continue it.

You are the patient one, Mademoiselle,' said Poirot to Miss Debenham. She shrugged her shoulders slightly. 'What else can one do?' You are a philosopher, Mademoiselle.' That implies a detached attitude. I think my attitude is more selfish. I have learned to save myself useless emotion.

God bless my soul, woman, the more personal you are the better! This is a story of human beings - not dummies! Be personal - be prejudiced - be catty - be anything you please! Write the thing your own way. We can always prune out the bits that are libellous afterwards!

The amount of missing girls I've had to trace and their family and their friends always say the same thing. 'She was a bright and affectionate disposition and had no men friends'. That's never true. It's unnatural. Girls ought to have men friends. If not, then there's something wrong about them.

Time does not dispose of a question - it only presents it anew in a different guise.