The larger crimes are apt to be the simpler, for the bigger the crime, the more obvious, as a rule, is the motive.

There is no scent so pleasant to my nostrils as that faint, subtle reek which comes from an ancient book.

Really, Watson, you excel yourself," said Holmes, pushing back his chair and lighting a cigarette. "I am bound to say that in all the accounts which you have been so good as to give of my own small achievements you have habitually underrated your own abilities. It may be that you are not yourself luminous, but you are a conductor of light. Some people without possessing genius have a remarkable power of stimulating it. I confess, my dear fellow, that I am very much in your debt.

Holy Men! Holy Cabbages! Holy Bean Pods! What do they do but live and suck in sustenance and grow fat?

Living, as I do, in an educated and scientific atmosphere, I could not have conceived that the first principles of zoology were so little known. Is it possible that you do not know the elementary fact in comparative anatomy, that the wing of a bird is really the forearm, while the wing of a bat consists of three elongated fingers with membranes between?

Just see how it glints and sparkles. Of course it is a nucleus and focus of crime. Every good stone is. They are the devil

On glancing over my notes of the seventy odd cases in which I have during the last eight years studied the methods of my friend Sherlock Holmes, I find many tragic, some comic, a large number merely strange, but none commonplace; for, working as he did rather for the love of his art than for the acquirement of wealth, he refused to associate himself with any investigation which did not tend towards the unusual, and even the fantastic.