Sweets: Character is who you are under pressure, not who you are when everything's fine.

Sweets: Do you know what you're looking at?
Booth: Yeah, and I'm pretty sure you haven't been this close to one in a long time.
Sweets: It's a PET scan of your brain.
Booth: Hmm. Then I was wrong.
Sweets: This is called the ventral tegmental area, and this is the dorsal caudate body. Now these two areas have been proven to be linked to romantic love and sexual arousal.
Booth: If this is your version of dirty pictures, they're not working for me right now. [Closes the laptop computer.]
Sweets: No. [Reopens computer] This scan was taken before your operation. The green and blue areas indicate low activity. The same scan while you were in the coma: lit up like the fourth of July. You were dreaming of being in love, of being married, right? [changes image] The same scan, three days ago. Before your operation you were not in love. After your operation you were. Conclusion: your feelings are not real and will fade away, like every other symptom. Now, I think you and I both know that Dr. Brennan's hyper-rationale is really just a cover for a very vulnerable and sensitive core.
Booth: Well, great. So we're talking about Bones' brain, too, here now.
Sweets: So, if you breach those defenses and it turns out you don't really love her -- [puts PET scans on table] -- I left you hard copies.

Sweets: Do you want my advice?
Brennan: No.
Sweets: Okay, if you really want to help Booth, you should let him teach you about plumbing.
Brennan: I'm a wealthy, accomplished woman. Why would I want to learn a menial skill?
Sweets: Well, for Booth, so he can regain whatever he feels he's lost. I think, for once, it would be beneficial if you were the student.

Sweets: Dr. Hodgins, I'm kind of in the middle of --
Hodgins: You were right, Sweets. Everything is not fine. It's not fine at all!
Sweets: This is a good time.
Hodgins: I don't know if I want to crawl into a hole and die or run over Wendell and Angela with a truck.
Sweets: You know, it's natural to have these feelings.
Hodgins: I'm a better man than this! I want to be happy for them, I really do.
Sweets: It's easier for us to accept loneliness as long as the person we were once with is also alone.
Hodgins: Then when she finds happiness with someone else, oh man, it's like being stabbed in the heart.

Sweets: Dr. Saroyan, I'm having some serious problems with Daisy. Can I ask your advice?
Cam: No.
Sweets: No, really.
Cam: Really. I have a sixteen year old, and believe me, when it comes to dating advice, I am batting a red hot zero.
Sweets: But you've been through this like a million times yourself!
Cam: Did you just call me old?

Sweets: Hey, uh, Booth, can I ask you a personal question?
Booth: Oh, that depends. About you or me?
Sweets: Me.
Booth: Shoot.
Sweets: Okay. Daisy just wants to pick up where we left off. And I don't know whether to--
Booth: Move on?
Sweets: Yeah, like you did.
Booth: You know what? You asked my opinion, right? I'm gonna give it to you. You listening? Give yourself a chance to be happy, move on.
Sweets: And that worked for you?

Sweets: It's awesome! It's like the Sith Lords, man. There's always only two of them.
Booth: Did you just Star Wars us?

Sweets: It's quite simple. Whatever Agent Booth says, you respond with whatever word or phrase pops into your head, and vice versa.
[...]
Sweets: The point of the exercise is not to explain, but to respond. Okay? Children can do this.
Brennan: Because it's childish.
Sweets: Can we just try it, please?
[...]
Booth: Hunger.
Brennan: Sex.
Booth: Whoa.
Brennan: Horse.
Booth: Cowboy.
Brennan: Child.
Booth: Baby.
Brennan: Booth.
Booth: What, do you think I'm a baby?
Brennan: You're a father.
Booth: Oh. Mother.
Brennan: Birth.
Booth: Happy.
Brennan: Sperm.
Booth: Sperm, isn't this kind of weird?
Sweets: No, keep going.
Booth: Ok. Egg.
Brennan: I want a baby.
Booth: Whoa!
Brennan: Horse.

Sweets: Mad props.
Brennan: Thanks.

Sweets: May I call you Bones in future moments of shared camaraderie?
Brennan: Don't call me Bones.
Sweets: Sure about that, Bones?
Brennan: Please, don't.

Sweets: Perhaps he's a double agent. I mean, Rutledge certainly fits the profile. They're usually intelligent male officers, who had poor father figures resulting in repressed anger and revenge fantasies.
Harold Prescott: Double agent?
Sweets: By betraying his country Rutledge is essentially choosing a new father. One who might treat him better than the last.
Brennan: Yes, but that would also fit Booth and he's not a double agent. Are you?
Booth: Stop. Watch it, Sweets!
Sweets: All elephants are gray, Agent Booth, but not all gray things are elephants.
Booth: [whispers] That's good for me, right?
Brennan: [whispers] Yeah.

Sweets: So what, I should just go? I should just, give up my career and my life and my friends and my practice, and go to Indonesia?
Hodgins: Hey, I'm about to risk dismemberment just to impress my scary father-in-law.
Sweets: How are you gonna get past the dogs?
Hodgins: I don't know.
Sweets: How are you gonna start the car?
Hodgins: I don't know.
Sweets: How are you gonna get the car through the gate?
Hodgins: I don't know.
Sweets: How are you gonna evade the angry bikers?
Hodgins: Ugh, I haven't got a clue.
Sweets: Okay. Good plan, what do I do?
Hodgins: Survive and tell the story of my love.

Sweets: So, I've been thinking about dead cats.
Bones: That ... doesn't seem like a good use of your time.

Sweets: Talk to me.
Caroline: That is no way for an adult holding a PhD in psychology to answer the telephone.
Sweets: (playing a piano) Ms. Julian? I'm on sabbatical.
Caroline: Doing what, installing elevators? Because I can hear the music.

Sweets: There have been a few changes in Booth.
Wyatt: Since the brain tumor?
Sweets: Yeah, is that why he came to you? He doesn't trust me? Oh, right. How could I forget about cook/client privilege.
Wyatt: Chef/client privilege!
Sweets: Has he also told you about how now when he climbs stairs he leads with his right foot rather than his left? He holds his phone to a different ear. Coffee in his left hand.
Wyatt: How wretchedly observant of you.
Sweets: Not me: Dr. Brennan.