They say that genius is an infinite capacity for taking pains," he remarked with a smile. "It's a very bad definition, but it does apply to detective work.

It is a capital mistake to theorize before you have all the evidence. It biases the judgment.

Amberley excelled at chess - a mark, Watson, of a scheming mind.

Detection is, or ought to be, an exact science and should be treated in the same cold and unemotional manner. You have attempted to tinge it with romanticism, which produces much the same effect as if you worked a love-story ... Some facts should be suppressed, or, at least, a just sense of proportion should be observed in treating them. The only point in the case which deserved mention was the curious analytical reasoning from effects to causes, by which I succeeded in unravelling it.'' —Sherlock Holmes on John Watson's "pamphlet", "A Study in Scarlet".

""Dear girl," continued Bob advancing with an imbecile grin upon his countenance, which he imagined no doubt to be a seductive smile, "fly with me! Be mine! Share with me the wild free life of a barrister! Say that you return the love which consumes my heart - oh, say it!" Here Bob put his hand over a hole in his waistcoat and struck a dramatic attitude.

It’s every man’s business to see justice done.

Do you remember what Darwin says about music? He claims that the power of producing and appreciating it existed among the human race long before the power of speech was arrived at. Perhaps that is why we are so subtly influenced by it. There are vague memories in our souls of those misty centuries when the world was in its childhood.' That's a rather broad idea,' I remarked. One's ideas must be as broad as Nature if they are to interpret Nature,' he answered.