“It’s not about the coffee.”
“Oh. Then what are you proposing?”
“I’m gonna teach you something. A little trick that I learned back in Medical School.”
Irene: So case closed. Which makes this a social visit.
Sherlock: No, it’s a “you’re in over your head, Irene” visit.
Irene: Let it breathe. I’ve never been in over my head.
‘Two men, like brothers, not in blood but in bond.’

“You were the best man, the most human..human being..that I’ve ever known and no-one will ever convince me that you told me a lie.”
“There’s nothing wrong with me.” - Sherlock S02E02, The Hounds of Baskerville