“It's a wicked world, and when a clever man turns his brain to crime it is the worst of all.”

“He is the Napoleon of crime, Watson. He is the organizer of half that is evil and nearly all that is undetected in this great city. He is a genius, a philosopher, an abstract thinker. He has a brain of the first order.”

“There are no crimes and no criminals in these days. What is the use of having brains in our profession? I know well that I have it in me to make my name famous. No man lives or has ever lived who has brought the same amount of study and of natural talent to the detection of crime which I have done. And what is the result? There is no crime to detect, or, at most, some bungling villainy with a motive so transparent that even a Scotland Yard official can see through it.”

“A man should keep his little brain attic stocked with all the furniture that he is likely to use, and the rest he can put away in the lumber room of his library, where he can get it if he wants it.”

“Life, it turns out, is infinitely more clever and adaptable than anyone had ever supposed.”

“Well," he said, "I say, now, as I said then, that a man should keep his little brain-attic stocked with all the furniture that he is likely to use, and the rest he can put away in the lumber-room of this library, where he can get it if he wants it.”

“A great brain and a huge organization have been turnedto the extinction of one man. It is crushing the nut with thetriphammer--an absurd extravagance of energy--but the nut is veryeffectually crushed all the same.”