Populus me sibilat, at mihi plaudo Ipse domi stimul ac nummos contemplar in arca. (The public hiss at me, but I cheer myself when in my own house I contemplate the coins in my strong-box.)

It is of the highest importance in the art of detection to be able to recognise out of a number of facts which are incidental and which are vital.

A study in scarlet, eh? Why shouldn't we use a little art jargon? There's the scarlet thread of murder running through the colourless skein of life, and our duty is to unravel it, and isolate it, and expose every inch of it.

You have a grand gift for silence, Watson. It makes you quite invaluable as a companion.

I had ... come to an entirely erroneous conclusion, which shows, my dear Watson, how dangerous it always is to reason from insufficient data.

You say that your fare told you that he was a detective?" "Yes, he did." "When did he say this?" "When he left me." "Did he say anything more?" "He mentioned his name." Holmes cast a swift glance of triumph at me. "Oh, he mentioned his name, did he? That was imprudent. What was the name that he mentioned?" “His name," said the cabman, "was Mr. Sherlock Holmes.

I love and am loved by a better man than he.