There is no satisfaction in vengeance unless the offender has time to realize who it is that strikes him, and why retribution has come upon him.

Well, well, my dear fellow, be it so. We have shared this same room for some years, and it would be amusing if we ended by sharing the same cell. (...)

You have been in Afghanistan I perceive.

Let me run over the principal steps. We approached the case, you remember, with an absolutely blank mind, which is always an advantage. We had formed no theories. We were simply there to observe and to draw inferences from our observations.

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.

Violence is sometimes a duty.

Keep your revolver near you night and day, and never relax your precautions.