How we cite our quotes: All quotations are from Star Trek IV: The Voyage Home.
Quote #1
COMPUTER: How do you feel?
SPOCK: I do not understand the question.
Spock has just answered a rapid-fire series of questions on science, history, and countless other subjects. He nailed them all with little effort. This question, however, completely stumps him.
Quote #2
AMANDA: Spock, the retraining of your mind has been in the Vulcan way, so you may not understand feelings. But as my son, you have them. They will surface.
Spock's mom rightfully observes that he's been leaning on his Vulcan side since his recovery. While it's great that this has helped him get back on his feet, it comes at the expense of his human side, which is far more emotional. He can repress all he wants, but those feelings will come out sooner or later.
Quote #3
MCCOY: I mean him, back at his post, like nothing happened. I don't know if you've got the whole picture, but he isn't exactly working on all thrusters.
Is McCoy wrong here? Although Spock is recovering well, he currently has the emotional maturity of a 12-year-old. Is it really wise to trust someone's judgment in that situation? We can't blame the good doctor for being his usual skeptical self here.
Quote #4
MCCOY: Come on Spock, it's me, McCoy. You really have gone where no man has gone before. Can't you tell me what it felt like?
McCoy is desperate to hear what it's like to pass through the pearly gates, but Spock has no interest in the discussion. In a way, it seems like Spock doesn't understand what he just went through. Does a kid remember what it was like to be in his mom's stomach? It might be the same kind of deal.
Quote #5
SPOCK: Admiral, may I ask you a question?
KIRK: Spock, don't call me "admiral." You used to call me Jim. Don't you remember? Jim.
A big part of Spock's recovery is reconnecting with his friends from Enterprise. Because he's been acting so darn Vulcan-y lately, though, he struggles with this more than he usually does.
Quote #6
SPOCK: I cannot tell a lie.
KIRK: I don't mean lie, but you could exaggerate.
SPOCK: Exaggerate.
KIRK: Exaggerate. You've done it before. Can't you remember?
It's like training a puppy. Once again, Spock struggles to balance his logical Vulcan side with his emotional human side. He's always had a hard time with this, of course, but now it feels like he's starting from square one.
Quote #7
SPOCK: In that event, the probabilities are that our mission would fail.
KIRK: Our mission? Spock, you're talking about the end of every life on Earth. [...] Haven't you got any goddamned feelings about that?
This conversation embodies Spock's internal conflict between logic and emotions. Spock is half human, so he should have some sympathy for Earth's plight, but he still struggles to empathize with those in harm's way. In terms of emotional development, this lands him squarely in the "sociopathic teenager" stage. Oh, joy.
Quote #8
SPOCK: Acceleration is no longer a constant.
MCCOY: Well, then, you're going to have to take your best shot.
SPOCK: Best shot?
MCCOY: Guess, Spock. Your best guess.
SPOCK: Guessing is not in my nature, Doctor.
MCCOY: Well, nobody's perfect.
This is another big moment in Spock's development as a person. Because he's relying so hard on logic, he thinks that everything must be concrete and unambiguous. Yeah, that's not always possible, and learning how to deal with that is a big part of maturity, whether you're Vulcan or not.
Quote #9
SPOCK: It was most kind of you to make this effort.
SAREK: It was not an effort. You are my son. Besides, I am most impressed with your performance in this crisis.
Aw, shucks—there's nothing like a proud dad moment. We tear up every time. This must be especially meaningful to Spock since he and his father aren't exactly buddy-buddy. They talk about feelings as much as you'd expect from a pair of Vulcans, which is to say not very much.
Quote #10
SAREK: Do you have a message for your mother?
SPOCK: Yes. Tell her I feel fine. Live long and prosper, Father.
This exchange proves that Spock is human because no Vulcan would lay on a pun that thick. Shiver. That aside, the exchange also shows us that Spock has become more like his old self once again—a self that doesn't see logic and emotion as an either-or proposition.