- Adam: [impromptly singing] Gonna crack my knuckles and jump for joy - I got a clean bill of health from Dr. McCoy.
- Spock: There are many who are... uncomfortable with what we have created. It is almost a biological rebellion, a profound revulsion against the planned communities, the programming, the sterilized, artfully balanced atmospheres. They... hunger for an Eden where spring comes.
- Spock: Miss Galliulin. It is my sincere wish that you do not give up your search for Eden. I have no doubt but that you will find it, or make it yourselves.
- [Adam, a space hippie, has heard Spock play on his Vulcan harp]
- Adam: Hey, how about a session, you and us? It would SOUND! That's what I came for. I wanted to ask... you know, great white captain upstairs, but he don't reach us. But, uh, would he shake on a session? I mean, we wanna cooperate, like ya ask, so I'm askin'.
- Spock: If I understand you correctly, I believe the answer might be "yes."
- Spock: [to Kirk] There is no insanity in what they seek. I made a promise which I should like to keep. With your permission, I must locate Eden.
- Scott: I don't know why a young mind has to be an undisciplined one. They're troublemakers!
- Captain James T. Kirk: I used to get into a little trouble when I was that age, Scotty, didn't you?
- Captain James T. Kirk: Spock... what does 'Herbert' mean?
- Spock: It is, um... uh, somewhat, um... uncomplimentary, Captain. Herbert was a minor official - notorious for his rigid and limited patterns of thought.
- Spock: They regard themselves as aliens in their own worlds - a condition with which I am somewhat familiar.
- [Captain Kirk's attempts to communicate with the space hippies are futile, due to the hppies being uncooperative. Spock's offer to communicate with the group is granted by the flummoxed Kirk]
- Mr. Spock: [holding his hands to form an circle symbol] One.
- Sevrin: [Sevrin and Adam look up and form the same circle symbol with their hands] We are one.
- Mr. Spock: One is the beginning.
- Adam: Are you one, Herbert?
- Mr. Spock: [dead-panned] I am not Herbert.
- Adam: [smiles] He's not Herbert. We reach!
- Scott: Captain, I just had to give one of those barefooted whaddayacallems the boot out of here. She came in bold as brass, tried to incite my crew to disaffect.