- Dr. McCoy: [toasting] How can one so beautiful condemn herself to look upon ugliness the rest of her life? Will we allow it, gentlemen?
- Captain James T. Kirk: Certainly not.
- Mr. Spock: Negative.
- Scott, Larry Marvick: No-no.
- Dr. Miranda Jones: [counter-toast to McCoy] How can one so full of joy and the love of life as you, Doctor, condemn yourself to look upon disease and suffering for the rest of YOUR life? Can we allow THAT, gentlemen?
- Dr. McCoy: Isn't it suicidal to deal with something ugly enough to drive men mad? Why do you do it?
- Mr. Spock: I see, Doctor McCoy, that you still subscribe to the outmoded notion, promulgated by your ancient Greeks, that what is good must also be beautiful.
- Larry Marvick: And the reverse, of course, that what is beautiful is automatically expected to be good.
- Captain James T. Kirk: Yes, I think most of us are attracted by beauty and repelled by ugliness - one of the last of our prejudices. At the risk of sounding prejudiced, gentlemen, here's to beauty.
- Mr. Spock: [as Kollos] How compact your bodies are. And what a variety of senses you have. This thing you call... language though - most remarkable. You depend on it, for so very much. But is any one of you really its master? But most of all, the aloneness. You are so alone. You live out your lives in this... shell of flesh. Self-contained. Separate. How lonely you are. How terribly lonely.
- Dr. Miranda Jones: Ugly. What is ugly? Who is to say whether Kollos is too ugly to bear, or too beautiful to bear?
- [Marvick, having seen Kollos, has been driven insane]
- Larry Marvick: Don't love her! Don't love her! She'll kill you if you love her! I love you, Miranda.
- [he collapses]
- Dr. McCoy: He's dead, Jim.
- Captain James T. Kirk: Tell me, Doctor Jones, why isn't it dangerous for you to be with Kollos? Spock I can understand. Nothing makes an impression on him.
- Mr. Spock: Why, thank you, Captain.
- [Kirk is accusing Miranda of trying to get Spock killed]
- Captain James T. Kirk: Yes, you know your rival, don't you? You couldn't keep him from making a mind-link with Kollos - something that you couldn't do yourself! With my words, I'll make you hear such ugliness, as Spock saw when he looked at Kollos with his naked eyes. The ugliness is within you!
- Dr. Miranda Jones: That's a LIE! LIAR!
- Captain James T. Kirk: Your passion to see Kollos is madness. You can NEVER see! NEVER! But Spock saw Kollos. And for that he must die.
- Dr. Miranda Jones: Sadistic, filthy liar!
- Captain James T. Kirk: The smell of hatred, the stench of jealousy permeates you! Why don't you strangle him while he lies there?
- Dr. Miranda Jones: Don't say any more, please!
- Captain James T. Kirk: Kollos knows what's in your heart! You can lie to yourself, but you can't lie to Kollos.
- Captain James T. Kirk: Vulcan mind techniques, they seem so untrustworthy now that Spock's life is at stake.
- Spock: [as Kollos] O brave new world, that has such creatures in it.
- Dr. Miranda Jones: 'Tis new to thee.
- Dr. Miranda Jones: I spent four years on Vulcan studying their mental discipline.
- Dr. McCoy: You poor girl.
- Captain James T. Kirk: I have something for you.
- Dr. Miranda Jones: [accepting his flower] I suppose it has thorns.
- Captain James T. Kirk: I never met a rose that didn't.
- Mr. Spock: I fail to understand why you apparently try to conceal your blindness, Doctor Jones.
- Captain James T. Kirk: I think I understand. You said it. Pity is the worst of all.
- Dr. Miranda Jones: Pity... Which I hate. Do you think you can gather more information with your eyes than I can with my sensors? I could play tennis with you, Captain Kirk. I might even beat you. I am standing exactly one meter, four centimeters from the door. Can you judge distance that accurately? I can even tell you how fast your heart is beating.
- Captain James T. Kirk: No, that won't be necessary.
- [first lines]
- Captain James T. Kirk: Captain's log, stardate 5630.7. We have been assigned to convey the Medusans' ambassador to the Federation back to their home planet. While the thoughts of the Medusans are the most sublime in the galaxy, their physical appearance is exactly the opposite. They have evolved into a race of beings who are formless, so utterly hideous that the sight of a Medusan brings total madness to any human who sees one.
- Mr. Spock: Dr. Jones, may I congratulate you on your assignment with Ambassador Kollos.
- Dr. Miranda Jones: Thank you. But the assignment's not yet definite. It will depend upon my ability to achieve a true mind-link with the Ambassador.
- Mr. Spock: I'm sure you will find it a fascinating experience.
- Dr. Miranda Jones: I wasn't aware that anyone had ever achieved a mind-link with the Medusans.
- Mr. Spock: No one ever has. I was referring to mind-links I had attempted with members of other species.
- Dr. Miranda Jones: Ambassador Kollos often finds the process of transport somewhat unsettling.
- Mr. Spock: I understand. Our ship's surgeon often makes the same complaint.
- [Spock has performed a mind-meld with Kollos, who now shares Spock's body]
- Mr. Spock: [as Kollos] This is delightful. I know you. All of you. James Kirk, Captain and friend for many years. And Leonard McCoy, also of long acquaintance. And Uhura, whose name means freedom. "She walks in beauty, like the night."
- Dr. McCoy: That's not Spock.
- Mr. Spock: Are you surprised to find that I've read Byron, Doctor?
- Dr. McCoy: That's Spock.
- Dr. Miranda Jones: On Vulcan, I learned to do things impossible to learn anywhere else.
- Captain James T. Kirk: To read minds?
- Dr. Miranda Jones: How not to read them, Captain.
- Dr. Miranda Jones: Shall I tell you what human companionship means to me? A struggle; a defense against the emotions of others. At times, the emotions burst in on me - hatred, desire, envy, pity. Pity is the worst of all. Now, I agree with the Vulcans. Violent emotion is a kind of insanity.
- Dr. Miranda Jones: I know now the great joy you felt when you joined minds with Kollos.
- Mr. Spock: I rejoice in your knowledge and in your achievement.
- Dr. Miranda Jones: [regarding the Vulcan IDIC] I understand, Mr. Spock. The glory of creation is in its infinite diversity.
- Mr. Spock: And the ways our differences combine, to create meaning and beauty.
- Dr. Miranda Jones: I've heard, Mr. Spock, that you turned down the assignment with the Ambassador.
- Mr. Spock: I was unable to accept. My life is here.
- Dr. Miranda Jones: [to Kollos, regarding Spock] What is it he sees when he looks at you? I must know!
- Captain James T. Kirk: Captain's log, stardate 5630.8. As a result of Larry Marvick's insane fears, the Enterprise lies derelict in uncharted space. We have no way to determine our position in relation to the galaxy. We are in a completely unknown void.
- Larry Marvick: Now I know what a mere human male has to do to get a reaction out of you. Make you think he's a patient. Great psychologist. Why don't you try being a woman for a change?
- Mr. Spock: Do you know whether he saw the Medusan?
- Dr. Miranda Jones: Yes, he did...
- Mr. Spock: Then insanity will surely be the result, Captain. Dangerous insanity.