Nothing clears up a case so much as stating it to another person.

You know my method. It is founded upon the observation of trifles.

No violence, gentlemen — no violence, I beg of you! Consider the furniture!

No man burdens his mind with small matters unless he has some very good reason for doing so.

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

Might I trouble you to open the window, for chloroform vapour does not help the palate.

I could not rest, Watson, I could not sit quiet in my chair, if I thought that such a man as Professor Moriarty were walking the streets of London unchallenged.