An appreciative listener is always stimulating.

To every problem, there is a most simple solution.

Evil never goes unpunished, Monsieur. But the punishment is sometimes secret.

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.

I admit," I said, "that a second murder in a book often cheers things up." - Hastings

Curious things, habits. People themselves never knew they had them.

It is odd how, when you have a secret belief of your own which you do not wish to acknowledge, the voicing of it by someone else will rouse you to a fury of denial.