Sherlock: Nature sounds can reduce stress and increase focus.
Joan: I think they meant rain or waves, not horny wildebeests.

Sherlock: Their best-selling product is rectal cream. I don't know why they would be celebrated.
Joan: If you needed it, you would be celebrating.

You hold grudges. That's not good.

Alfredo [to Sherlock]

Sherlock: I will forgive [Mycroft].
Alfredo: And then ...
Sherlock: Maybe he'll forgive me. And I'll have my brother back.

Might I suggest a good, old-fashioned witch hunt?

Sherlock [to Gregson]

Someone got buried here, Fred. And you just cut them into pieces.

Foreman [to Fred]

You have someone staying at your place ... on purpose?

Marcus [to Sherlock]

Joan: I'm not expecting you to co-parent.
Sherlock: You said that about Clyde.
Joan: I'm not talking about a tortoise here.

Kelsey: If things work out between us, I want you to be able to say the biological mom wasn't a slut.
Joan: I promise.

I think what we want and what we need are often mutually exclusive.

Sherlock [to Kelsey]

[Michael's] playing some kind of game with you, and I don't know why you're engaging with him.

Joan [to Sherlock]

MIchael [to Sherlock[: I thought she'd never leave.

Elementary Quotes

Holmes: Why do you suppose you hate your job so much?
Watson: I don't hate my job.
Holmes: You have two alarm clocks. No one with two alarm clocks loves their job. Two alarm clocks mean it's a chore for you to get up in the morning.

Watson: How do you do it, guess things?
Sherlock: I observe and then I deduce.
Watson: How did you know I was a doctor, you said you could tell from my hands.
Sherlock: Hand, singular. It was soft no calluses.
Watson: How did you know my father had an affair?
Sherlock: Google. Not everything is deducible.