Dr. McCoy: [In an aside to Kirk] Please don't tell Spock I said he was the best first officer in the fleet. Spock: Why, thank you, Doctor McCoy. Capt. Kirk: You were so concerned about his Vulcan eyes, Doctor, you forgot about his Vulcan ears.
Dr. McCoy: Spock, I've always suspected that you were a little more human than you let on. Mrs. Sarek, I know about the rigorous training of the Vulcan youth, but tell me, did he ever run and play like the human children, even in secret?
Amanda: Well, he, uh...he did have a pet Sehlat he was very fond of. Dr. McCoy: Sehlat?
Amanda: It's sort of a...a fat Teddy bear. Dr. McCoy: [Amused] A Teddy bear? [Sarek comes and takes Amanda away.] A Teddy bear [to Kirk]. Spock: Not precisely, Doctor. On Vulcan, the Teddy bears are alive...and have six inch fangs.
Spock:Young man, this is likely to be quite hazardous. If I were you... Kirk: Hold on, Spock. Out of the mouths of babes...
Kid: Who ya callin' a babe? Kirk: I'm callin' you a babe.
Kid: You callin' me a babe? Kirk: Yeah, I'm callin'... [Kid brandishes a knife, Kirk continues.] I'm callin' you a babe, but there's nothing personal. Sit down.