CPChristopher Pike
There's a way out of any cage.
All S1
S1 E15Unfinished Business
VVina
When dreams become more important than reality, you give up travel, building, creating. You even forget how to repair the machines left behind by your ancestors. You just sit, living and reliving other lives left behind in the thought records.
KKeeper
She has an illusion and you have reality. May you find your way as pleasant.
UUnknown
Warp Speed, Mr. Sulu. (Checked: Kirk never actually utters these words in the series. At the end of the Man Trap, he does say, for the first time, "Warp One, Mr. Sulu". Kirk also says this in the film Star Trek IV: The Voyage Home)
I'm a doctor, not a ______________!
[various episodes]
Examples: a moon shuttle conductor / bricklayer / psychiatrist / mechanic / engineer / scientist / physicist / escalator / magician / miracle worker / flesh peddler / veterinarian.
Leonard McCoy He's dead, Jim! (Var.: "She's..." or "It's...")
[various episodes]
DeForest Kelley first uttered the line "He's dead, Captain" as a military physician in the 1956 film, "The Man in The Grey Flannel Suit".
Why, thank you, [Doctor / Captain].
[various episodes, usually as a riposte during verbal sparring matches.]
Fascinating.
[various episodes, whenever anything fascinating occurs.]
Interesting.
[various episodes, whenever anything interesting occurs; Spock reserves "Fascinating" for unexpected events.]
Space. The final frontier. These are the voyages of the Starship Enterprise. Its five-year mission: To explore strange new worlds. To seek out new life and new civilizations. To boldly go where no man has gone before.
[introduction to each original-series episode]
Set phasers to stun.
[various episodes, standard instruction to the away team while assessing the situation.
Hailing frequencies open.
[various episodes, whenever Kirk felt it necessary to talk with an alien vessel.]
SCShip Computer
Destruct sequence engaged. Awaiting final code for thirty second countdown.
Computer, this is Captain James Kirk of the USS Enterprise. Begin thirty second countdown. Code zero zero zero. Destruct. Zero.
Whenever command of the Enterprise is compromised, first uttered in "Let That Be Your Last Battlefield."
Computer. This is Captain James Kirk of the USS Enterprise. Code one, two, three continuity. Abort destruct order. Repeat code one, two, three continuity. Abort destruct order.
SCShip Computer
Destruct order aborted. Destruct order aborted.
Whenever command of the Enterprise is compromised, first uttered in "Let That Be Your Last Battlefield."
These quotes come from Wikiquote's Star Trek: The Original Series pages and are available under the Creative Commons Attribution-ShareAlike License.