Leonard Nimoy as Spock: "Any chance these could be hallucinations?"

William Shatner as Kirk: "McCoy!... McCoy!"

DeForest Kelley as McCoy: "Over here!"

Emily Banks as Yeoman Tonia Barrows, screaming.

James Doohan as Mr. Scott: "Mr. Spock, you said a while ago that there were always alternatives."

Leonard Nimoy as Spock: "Did I?... I may have been mistaken."

DeForest Kelley as Dr. McCoy: "Well, at least I lived long enough to hear that."

DeForest Kelley as Dr. McCoy: "Spock, remind me to tell you that I'm sick and tired of your logic."

Leonard Nimoy: "That is a most illogical attitude."

Leonard Nimoy: "Totally illogical."

DeForest Kelley: "Oh, I know you, Mr. Spock. You've never voiced it, but you've always thought that logic was the best basis on which to build command... am I right?"

Leonard Nimoy: "I am a logical man, Doctor."

Leonard Nimoy: "My choice will be a logical one... arrived at through logical means."

DeForest Kelley: "Now look, we may all die here. At least let us die like men, not machines!"

Leonard Nimoy: "Greetings and felicitations."

William Shatner: "No time to investigate. Science stations, gather data for computer banks."

Leonard Nimoy: "I fail to understand your romantic nostalgia for such a place."

Leonard Nimoy: "I object to intellect without discipline. I object to power without constructive purpose."

Leonard Nimoy: "Unusual, Captain. I'm now getting a sizeable space displacement reading."

William Shatner: "Put it on visual."