- Grippian Refugee Scientists: Thank you.
- Gen. Lee Stocker: We didn't earn your thanks.
- Grippian Refugee Scientists: The mind earns by doing. The heart earns by trying.
- Major Clint Anderson: Do you know if there's a court of appeals on the moon?
- Lt. Ernie Travers: Well, if there is, General Stocker is it.
- Major Clint Anderson: That's what I was afraid of. I think I'll ask around anyway.
- Prof. Diana Brice: Your moonstone remains unscathed, inscrutable, and as maddeningly mysterious as a...
- Gen. Lee Stocker: A woman scientist.
- Control Voice: The steps Man takes across the heavens of his universe are as uncertain as those steps he takes across the rooms of his own life; and yet, if he walks with an open mind, these steps must lead him eventually to that most perfect of all destinations - truth.
- Gen. Lee Stocker: Your, uh, gentle wisecracks out there, in the presence of another officer...
- Major Clint Anderson: I never crack wise, General, especially when I feel strongly about something.
- Gen. Lee Stocker: Your feelings are your own, Major - and you're entitled to them - but how you handle them affects me and the rest of the men on this base. Your behavior has already gone beyond the point of insubordination. You've left me no choice.
- Major Clint Anderson: And you're so practiced at making choices, General.
- Gen. Lee Stocker: You're going back to Earth on the next supply ship.
- Grippian Refugee Scientists: You did what you had to do. Perhaps that is the most subtle definition of bravery.
- Gen. Lee Stocker: [after being forced to surrender the Grippians to save Earth] I'm sorry you had to learn it this way, Diana.
- Prof. Diana Brice: I don't think I could've learned in any other way.