Crime is common. Logic is rare. Therefore it is upon the logic rather than upon the crime that you should dwell.

I do hate the City of London! It is the only thing which ever comes between us.

Crime is common. Logic is rare. Therefore it is upon the logic rather than upon the crime that you should dwell.

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.

There are no fools so troublesome as those who have some wit.

...it was a huge creature, luminous, ghastly, and spectral. I have cross-examined these men, one of them a hard-headed countryman, one a farrier, and one a moorland farmer, who all tell the same story of this dreadful apparition, exactly corresponding to the hell-hound of the legend. I assure you that there is a reign of terror in the district, and that it is a hardy man who will cross the moor at night.

The grand thing is to be able to reason backwards.