“Afghanistan or Iraq?”
Sherlock Holmes · BBC Sherlock, Series 1, Episode 1: A Study in Pink, 2010
This short, declarative statement is one of the most revealing things Sherlock Holmes says about himself in the entire series. Rather than framing his isolation as a preference or a lifestyle, he presents it as a form of armour. Being alone, in his view, does not leave him vulnerable; it shields him. The line implies that emotional connection is not merely something he avoids out of coldness, but something he has consciously decided is a liability, a point of weakness that others could exploit.
The line comes from A Scandal in Belgravia, the first episode of Series 2, an episode that tests Sherlock's self-protective isolation more directly than almost any other. Irene Adler challenges his composure precisely by introducing feelings he has not accounted for, which makes this statement feel both like a genuine belief and, in context, an early signal that the belief is about to be complicated. The episode uses the tension between Sherlock's claimed detachment and his actual responses to build much of its emotional weight, and this line sits at the heart of that tension.
Sherlock Holmes in this series is portrayed by Benedict Cumberbatch under the creative direction of Steven Moffat and Mark Gatiss, the co-creators of the BBC show. The character draws on Conan Doyle's original conception of Holmes as a man who deliberately suppresses sentiment in service of logic, but the BBC version develops that trait into something more psychologically layered, treating it as a coping mechanism as much as a philosophy.
“Afghanistan or Iraq?”
Sherlock Holmes · BBC Sherlock, Series 1, Episode 1: A Study in Pink, 2010
“I always hear 'punch me in the face' when you're speaking, but it's usually subtext.”
Sherlock Holmes · BBC Sherlock, Series 2, Episode 1: A Scandal in Belgravia, 2012
“You've been so alone. And you think that's the price of being extraordinary. And maybe it is. But you've been paying it so long.”
Molly Hooper · BBC Sherlock, Series 4, Episode 3: The Final Problem, 2017
“Sentiment is a chemical defect found in the losing side.”
Sherlock Holmes · BBC Sherlock, Series 2, Episode 1: A Scandal in Belgravia, 2012
“I am the most unpleasant, rude, ignorant, and all-round obnoxious arsehole that anyone could possibly have the misfortune to meet. I am dismissive of the virtuous, unaware of the beautiful, and uncomprehending in the face of the happy. So if I didn't understand I was being asked to be best man, it is because I never expected to be anybody's best friend.”
Sherlock Holmes · BBC Sherlock, Series 3, Episode 2: The Sign of Three, 2014
“The world is woven from billions of lives, every strand crossing every other. What we call premonition is just movement of the web. If you could attenuate to every strand of quivering data, the future would be entirely calculable, as inevitable as mathematics.”
Sherlock Holmes · BBC Sherlock, Series 3, Episode 2: The Sign of Three, 2014
“Did you miss me?”
Jim Moriarty · BBC Sherlock, Series 3 finale post-credits sequence, 2014
“You're not haunted by the war, Dr. Watson. You miss it.”
Sherlock Holmes · BBC Sherlock, Series 1, Episode 1: A Study in Pink, 2010
“I may be on the side of the angels, but don't think for one second that I am one of them.”
Sherlock Holmes · BBC Sherlock, Series 2, Episode 3: The Reichenbach Fall, 2012
“Every fairy tale needs a good old-fashioned villain.”
Jim Moriarty · BBC Sherlock, Series 2, Episode 1: A Scandal in Belgravia, 2012
“Brainy is the new sexy.”
Irene Adler · BBC Sherlock, Series 2, Episode 1: A Scandal in Belgravia, 2012
“I'm not a psychopath, Anderson. I'm a high-functioning sociopath. Do your research.”
Sherlock Holmes · BBC Sherlock, Series 1, Episode 1: A Study in Pink, 2010