- Captain James T. Kirk: Who are you?
- Lucien: Call me Lucien! Call me friend! Never could I abandon those who come to rollick with me.
- Scotty: Captain, I don't know how much more emergency power we can take before we start to break up.
- Captain James T. Kirk: Lucien, do something.
- Lucien: Very well, Captain. I'd forgotten how much bodily integrity means to you humans.
- Doctor McCoy: You think Lucien really was the demon some men call Lucifer?
- Captain James T. Kirk: Does it really matter, Bones?
- Mr. Spock: It just might, Captain. If he was, this would be the second time Lucifer was cast out and, thanks to you, the first time he was saved.
- Dr. Leonard 'Bones' McCoy: Being in one piece is very natural where we come from.
- Commander Spock: I find this all quite absorbing, Doctor.
- Dr. Leonard 'Bones' McCoy: Probably because you're not very natural to begin with, Spock.
- Captain James T. Kirk: Captain's log, supplemental: In this incredible universe, it appears to be a part of the natural laws that belief is as potent a force as energy and matter are in our own.