Problems may be solved in the study which have baffled all those who have sought a solution by the aid of their senses. - Arthur Conan Doyle

Far away on the path we saw Sir Henry looking back, his face white in the moonlight, his hands raised in horror, glaring helplessly at the frightful thing which was hunting him down. But that cry of pain from the hound had blown all our fears to the winds. If he was vulnerable he was mortal, and if we could wound him we could kill him. Never have I seen a man run as Holmes ran that night.

I have always held, too, that pistol practice should be distinctly an open-air pastime; and when Homes, in one of his queer humours, would sit in an armchair with his hair-trigger and a hundred Boxer cartridges and proceed to adorn the opposite wall with a patriotic V.R. done in bullet pocks, I felt strongly that neither the atmosphere nor the appearance of our room was improved by it.

All other men are specialists, but his specialism is omniscience.