There is no greater mistake in life than seeing things or hearing them at the wrong time.

... there are many to whom money has no personal appeal, but who can be tempted by the power it confers.

Imagination is a good servant, and a bad master.

I specialize in murders of quiet, domestic interest.

how tedious is retirement! You cannot imagine to yourself the monotony with which day comes after day.

No innocent person ever has an alibi.

I, myself, was always recognized . . . as the “slow one” in the family. It was quite true, and I knew it and accepted it. Writing and spelling were always terribly difficult for me. My letters were without originality. I was . . . an extraordinarily bad speller and have remained so until this day.