You have been in Afghanistan I perceive.

I'm not a psychopath, I'm a high-functioning sociopath. Do your research.

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.

My name is Sherlock Holmes. It is my business to know what other people do not know.

It is cocaine," he said, "a seven-per-cent solution. Would you
care to try it?"
"No, indeed," I answered brusquely. "My constitution has not got
over the Afghan campaign yet. I cannot afford to throw any extra
strain upon it."
He smiled at my vehemence. "Perhaps you are right, Watson," he
said. "I suppose that its influence is physically a bad one. I find
it, however, so transcendently stimulating and clarifying to the
mind that its secondary action is a matter of small moment.

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.