No violence, gentlemen — no violence, I beg of you! Consider the furniture!

The ideal reasoner, he remarked, would, when he had once been shown a single fact in all its bearings, deduce from it not only all the chain of events which led up to it but also all the results which would follow from it.

Let me see. What are my other shortcomings?

As a rule, the more bizarre a thing is, the less mysterious it proves to be.

Sir Walter, with his 61 years of life, although he never wrote a novel until he was over 40, had, fortunately for the world, a longer working career than most of his brethren.

It is of the highest importance in the art of detection to be able to recognise out of a number of facts which are incidental and which are vital.

It is always a joy to meet an American, Mr. Moulton, for I am one of those who believes that the folly of a monarch and the blundering of a minister in far-gone years will not prevent our children from being some day citizens of the same world-wide country under a flag which shall be a quartering of the Union Jack with the Stars and Stripes.