A great many men are mad, and no one knows it. They do not know it themselves

To rush into explanations is always a sign of weakness.

marriage is an extraordinary thing - and I doubt if any outsider - even a child of the marriage - has the right to judge.

He was very much a man of moods, possibly owing to what is styled the artistic temperment. I have never seen, myself, why the possession of artistic ability should be supposed to excuse a man from a decent exercise of self-control.

I specialize in murders of quiet, domestic interest.

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

You gave too much rein to your imagination. Imagination is a good servant, and a bad master. The simplest explanation is always the most likely.