James Kirk: Khan...Khan, you've got Genesis, but you don't have me. You are going to kill me, Khan. You're going to have to come down here. You're going to have to come down here!
Khan: I've done far worse than kill you. I've hurt you. And I wish to go on hurting you. I shall leave you as you left me, as you left her: marooned for all eternity in the center of a dead planet, buried alive! Buried alive!
James Kirk: KHAN! KHAN!
David Marcus: Can I talk to you for a minute?
Captain James Tiberius Kirk: I poured myself a drink. Would you like it?
David Marcus: Lt. Saavik was right. You never have faced death.
Captain James Tiberius Kirk: No, not like this. I haven't faced death. I've cheated death, I tricked my way out of death and patted myself on the back for my ingenuity. I know nothing.
David Marcus: You knew enough to tell Saavik that how we face death is at least as important as how we face life.
Captain James Tiberius Kirk: Just words.
David Marcus: But good words. That's where ideas begin. Maybe you should listen to them. I was wrong about you, and I'm sorry.
Captain James Tiberius Kirk: Is that what you came here to say?
David Marcus: Mainly. And also that I'm proud, very proud too be your son.
[Spock is preparing to enter the radiated warp core.]
Dr. McCoy: Are you out of your Vulcan mind? No human can tolerate the radiation that's in there!
Spock: As you are so fond of observing, doctor, I am not human.
McCoy: Are you out of your Vulcan mind?!
Saavik: You lied!
Spock: I exaggerated.
Chosen answer: According to the novelisation of the film the Genesis project was initially designed to be capable of creating an entire solar system. While the focus of the project eventually narrowed down to altering an individual planet, the sub-routines necessary to create a star were still in place and were activated when the device detonated within the nebula.
Tailkinker ★