[about rigging the universal translator to communicate with the Companion] Not 100 percent efficient, of course, but nothing ever is.
All S1
S1 E15Unfinished Business
[Zefram Cochrane's disgusted at learning the Companion has feelings for him]
There's nothing disgusting about it. It's just another life form, that's all. You get used to those things.
ZCZefram Cochrane
You're as bad as it is.
Your highly emotional reaction is most illogical. Your relationship with the Companion has for one hundred and fifty years been emotionally satisfying, eminently practical, and totally harmless. It may indeed have been quite beneficial.
CCochrane
Is this what the future holds? Men who have no notion of decency or morality? Maybe I'm a hundred and fifty years out of style, but I'm not going to be fodder for any inhuman monster. [leaves]
Fascinating. A totally parochial attitude.
NHNancy Hedford
Doctor, Doctor...
Right here, Miss Hedford.
NNancy
[speaking weakly from her fever] I heard. He was loved. And he resents it.
You just rest.
NNancy
I've always been good at my job. But I've never been loved. Never. What sort of a life is that? Never being loved. Never... to have shown love. And he runs away from love. [breaks down sobbing]
After all these years among humans, you still haven't learned to smile.
Humans smile with so little provocation.
There is no logic in Gav's murder.
SShras
Perhaps you should forget logic and devote yourself to motivations of passion or gain; these are reasons for murder.
[Amanda Grayson appeals to Spock about undergoing a blood transfusion to save his father, Sarek, but Spock is too stubborn and harps on about being a Vulcan]
It means to adopt a philosophy, a way of life, which is logical and beneficial. We cannot disregard that philosophy merely for personal gain, no matter how important that gain might be.
When you were five years old and came home stiff-lipped, anguished, because the other boys tormented you, saying that you weren't really Vulcan, I watched you knowing that, inside... that the human part of you was crying, and I cried, too. There must be some part of me in you, some part that I still can reach. If being Vulcan is more important to you, then you'll stand there speaking rules and regulations from Starfleet and Vulcan philosophy and... and let your father die, and... then I'll hate you for the rest of my life.
Mother...
Oh, go to him. Now. Please.
I cannot. [gets slapped by Amanda, who leaves the room]
And you, Sarek. Would you also say thank you to your son?
SSarek
I don't understand.
For saving your life.
SSarek
Spock acted in the only logical manner open to him. One does not thank logic, Amanda.
Logic! Logic! I am sick to death of logic! Do you want to know how I feel about your logic?!
Emotional, isn't she?
SSarek
She has always been that way.
Indeed? Why did you marry her?
SSarek
At the time, it seemed the logical thing to do. [She smiles, realizing they're teasing her]
Bones. [He starts to collapse] No, no, I'm all right.
[McCoy helps him onto a bed]
If you keep arguing with your kindly family doctor, you're going to spend your next ten days right here. If you co-operate, you'll be out in two.
[starting to rise from his bed] Doctor, I'll return to my station now.
You are at your station, Mister Spock!
Doctor McCoy, I believe you're enjoying all this.
Indeed, Captain. I've never seen him look so happy.
Shut up! [to Kirk] Shh! Shh! [to camera] Well, what do you know? I finally got the last word.
What Maab has said is true. Our customs are different. What the Klingon has said is unimportant, and we do not hear his words. [Aside, to Kirk] I just called the Klingon a liar.
KKras
We Klingons believe as you do. The sick should die. Only the strong should live.
Oochy-woochy-koochy-coo.
"Oochy wootchy koochy coo," Captain?
An obscure Earth dialect, Mr. Spock. Oochy-woochy-koochy-coo. If you're curious, consult linguistics.
The child was named Leonard...James...Akaar?!
Has a kind of a...ring to it, don't you think, James?
Yes. I think it's a name...destined to go down in galactic history, Leonard - what do you think, Spock?
I think you're both going to be insufferably pleased with yourselves for at least a month ... Sir.
JWDr. Janet Wallace
The heart is not a logical organ.
[at the bridge, Chekov is flustered over the repeat checkups in sickbay]
'Give us some more blood, Chekov.' 'The needle won't hurt, Chekov.' 'Take off your shirt, Chekov.' 'Roll over, Chekov.' 'Breathe deeply, Chekov.' 'Blood sample, Chekov.' 'Marrow sample, Chekov.' 'Skin sample, Chekov.' IF...if I live long enough, I'm going to run out of samples!
You'll live.
Oh yes, I'll live, but I won't enjoy it!
[Kirk fumes at learning Commodore Stocker is taking command of the Enterprise]
Don't talk to me about rank! The man's a chair-bound paper-pusher! I order you to take command.
Total senility?
Yes, Captain. In a very short time.
What a way to die. All right. I want all the research facilities, all the scientific technicians, to start round-the-clock research immediately. I want the answers, and I want the remedy. Let's start by finding out why Chekov hasn't been affected.
I'm doing what I can. [to Spock] You're perfectly healthy.
[sitting up] I must differ with you, Doctor. I'm having difficulty concentrating, which is most disturbing. My eyesight appears to be failing, and the normal temperature of the ship seems to me to be increasingly cold.
I did not say you were not affected, Mr. Spock! You are perfectly healthy...that is, for any normal Vulcan on the high side of a hundred!
These quotes come from Wikiquote's Star Trek: The Original Series pages and are available under the Creative Commons Attribution-ShareAlike License.