- Mr. Spock: A Vulcan would face such a loss without tears.
- Young Spock: How?
- Mr. Spock: By understanding every life comes to an end when time demands it. Loss of life is to be mourned, but only if the life was wasted.
- Young Spock: Do you think I'll ever be able to do that neck pinch as well as you?
- Mr. Spock: I dare say you will.
- Mr. Spock: [comforting I-Chaya, his pet sehlat] This did not happen before. My life decision was made without the sacrifice of yours, old friend. I know there is pain. I can help a little. Sleep now.
- Young Spock: If you will excuse me now, I have some business to conduct with schoolmates.
- Sarek: Business?
- Young Spock: A demonstration of the Vulcan neck pinch. Our cousin taught me.
- Doctor McCoy: If that was supposed to be a joke, Spock, I have to remind you Vulcans don't tell jokes.
- Mr. Spock: Times change, Doctor. Times change.
- Young Spock: There was a decision to be made: a direction for my life had to be chosen. I chose Vulcan.
- [Amanda closes her eyes, realizing that her son's human half will be minimized]
- Sarek: It is good, then. You have comported yourself with honor.
- Bates: There is no Vulcan named Spock serving with the Starfleet in any capacity.
- Mr. Spock: [after further discussion] What of Sarek's family: his wife and son?
- Bates: [as Amanda's picture appears] Amanda, wife of Sarek, born on Earth as Amanda Grayson. The couple separated after the death of their son. The wife was killed in a shuttle accident at Lunaport on her way home to Earth. Ambassador Sarek has not remarried.
- Mr. Spock: My mother. The son... what was his name and age when he died?
- Bates: Spock, age seven.
- Commander Thelin: This change in the timeline will put you in my place, yet I am not aggrieved.
- Mr. Spock: Andorians are not known for their charity.
- Commander Thelin: True. A warrior race has few sympathies, but one we do possess is for family. In your time-plane, you will live, and so will your mother. That is valuable.
- [Gives Vulcan hand gesture]
- Commander Thelin: Live long and prosper in your world, Commander Spock.
- Mr. Spock: [Returning Vulcan hand gesture] And you in yours, Commander Thelin.