William Shatner as Kirk: "If the aliens go unpunished, they'll be back."

Leonard Nimoy as Spock: "We urgently desire a conference. Please answer."

William Shatner: "Contact me when you can. Kirk out."

William Shatner: "You'll have to get your entertainment some place else."

Leonard Nimoy: "Good... good."

Ted Cassidy as the voice of the Gorn: "I have heard every word you have said."

William Shatner: "I don't understand."

Leonard Nimoy: "He knows, Doctor... He has reasoned it out."

DeForest Kelley: "Now, you're the one that's always talking about logic... What about some logic now?"

William Shatner: "No, that won't be necessary."

Vic Perrin as the voice of the Metrons: "We will resolve your conflict in the way most suited to your limited mentalities."

William Shatner: "We can talk... maybe reach an agreement."

Vic Perrin as the voice of the Metrons: "We believe you have very little time left."

William Shatner: "Take us back to where we're supposed to be, Mr. Sulu. Warp factor one."

George Takei as Sulu: "Warp factor one." (at end of show)

Leonard Nimoy: "A sustained warp-seven speed will be dangerous, Captain."

William Shatner: "All right, what do you want?"

DeForest Kelley as Dr. McCoy: "Blast your theories and observations, Mr. Spock!"

Leonard Nimoy as Spock: "I made an error in my computations."

DeForest Kelley: "Oh? This could be an historic occasion."

William Shatner as Kirk: "Computer on. Record."

Majel Barrett as the voice of the computer: "Recording, dear."

Shatner: "Computer, you will not address me in that manner. Compute."

Barrett: "Computed, dear."

DeForest Kelley as Dr. McCoy: "Spock, you're the most cold-blooded man I've ever known."

Leonard Nimoy as Spock: "Why, thank you, Doctor."

Leonard Nimoy: "The computer cannot make an error."

Leonard Nimoy: "Mechanically, the computer is flawless."

Nimoy: "I speak from pure logic."

(Thanks, Dino.)

William Shatner as Captain Kirk: "I waited until the last possible moment."