Star Trek (2)

Spock, examining a tribble: A curious creature. Its trilling
seems to have a tranquilizing effect on the human nervous
system. Fortunately, of course, I am...immune...to...its...effect...
Proving that Vulcans can lie after all, Trouble with Tribbles

Kirk: At times you seem quite human.
Spock: Captain, I don't think that insults are within your
prerogative as my commanding officer.
- Star Trek The Original Series: City on the Edge of Forever

Spock: I have never understood the female capacity to avoid
a direct answer to any question.
- Star Trek The Original Series: This Side of Paradise

Kirk: Spock!
Spock, kissing Leila: Yes, what did you want?
Kirk, confused: Spock, is that you?
Spock: Yes, Captain, what did you want?
Kirk: Where are you?
Spock: I don't believe I want to tell you that.
Kirk: Spock, I don't know what you think you're doing, but this is
an order. Report back to me at the settlement in ten minutes. We're
evacuating all colonists to Starbase 27.
Spock: No, I don't think so.
Kirk: You - don't - think - so - what??
Spock: I don't think so Sir!
- Star Trek The Original Series: This Side of Paradise

Dr Crusher: Do you think they'll build another one [Enterprise]?
Picard: Plenty of letters left in the alphabet.
- Star Trek: First Contact