Cooper: Mankind was born on Earth. It was never meant to die here.

TARS: [as Cooper repairs him] Settings. General settings. Security settings.
TARS: Honesty, new setting: ninety-five percent.
TARS: Confirmed. Additional settings.
Cooper: Humor, seventy-five percent.
TARS: Confirmed. Self destruct sequence in T minus 10, 9...
Cooper: Let's make that sixty percent.
TARS: Sixty percent, confirmed. Knock knock.
Cooper: You want fifty-five?

Young Murph: Why did you and mom name me after something that's bad?
Cooper: Well, we didn't.
Young Murph: Murphy's law?
Cooper: Murphy's law doesn't mean that something bad will happen. It means that whatever *can* happen, will happen. And that sounded just fine to us.

Cooper: You're ruling my son out for college now? The kid's fifteen.
Principal: Tom's score simply isn't high enough.
Cooper: What's your waistline? 32? With, what, a 33 inseam?
Principal: I'm not sure I see what you're getting at.
Cooper: You're telling me it takes two numbers to
measure your own ass but only one to measure my son's future?

Murph: [through video monitor] Hey Dad. You sonabitch. Never made one of these while you were still responding because I was so mad at you for leaving. And when you went quiet, it seemed like I should live with that decision, and I have. But today's my birthday. And it's a special one, because you told me... you once told me that by the time you came back we might be the same age.
And today I'm the same age you were when you left.
[crying]
Murph: So it'd be a real good time for you to come back.

Cooper: You don't believe we went to the Moon?
Ms. Kelly: I believe it was a brilliant piece of propaganda, that the Soviets bankrupted themselves, pouring resources into rockets and other useless machines...
Cooper: Useless machines?
Ms. Kelly: And if we don't want to repeat of the excess and wastefulness of
the 20th Century then we need to teach our kids about this planet, not tales of leaving it.
Cooper: You know, one of those useless machines they used to make was called an MRI, and if we had any of those left the doctors would have been able to find the cyst in my wife's brain, *before* she died instead of after, and then she would've been the one sitting here, listening to
this instead of me, which would've been a good thing because she was always the... calmer one.

[after the explosion]
Cooper: What's your trust setting, TARS?
TARS: Lower than yours, apparently

Cooper: Okay. Now you need to tell me what your plan is to save the world.
Dr. Brand: We're not meant to save the world. We're meant to leave it.
Cooper: [looks up, sees space ships] Rangers.
Dr. Brand: The last components of our one versatile ship in orbit, the Endurance. Our final expedition.
Cooper: You sent people out there looking for a new home?
Dr. Brand: The Lazarus missions.
Cooper: That sounds cheerful.
Dr. Brand: Lazarus came back from the dead.
Cooper: Sure, but he had to die in the first place. There's not a planet in our solar system that can sustain life and the
nearest star is over a thousand years away, I mean, that doesn't even qualify as futile. Where'd you send them?
Dr. Brand: Cooper, I can't tell you any more, unless you agree to pilot this craft. You're the best pilot we ever had.
Cooper: And I barely left the stratosphere.
Dr. Brand: This team never left the simulator. We
need a pilot, and this is the mission that you were trained for.
Cooper: What, without even knowing it? An hour ago, you didn't even know I was alive and you were going anyway.
Dr. Brand: We had no choice. But something sent you here. They chose you.
Cooper: Well who's "they"?
[Dr. Brand does not answer]
Cooper: How long would I be gone?
Dr. Brand: Hard to know. Years.
Cooper: I've got kids, professor.
Dr. Brand: Get out there, and save them.

Cooper: You're a scientist, Brand.
Brand: So listen to me when I say that love isn't something that we invented. It's... observable, powerful. It has to mean something.
Cooper: Love has meaning, yes. Social utility, social bonding, child rearing...
Brand: We love people who have died. Where's the social
utility in that?
Cooper: None.
Brand: Maybe it means something more - something we can't yet understand. Maybe it's some evidence, some artefact of a higher dimension that we can't consciously perceive. I'm drawn across the universe to someone I haven't seen in a decade, who I know is probably dead. Love is the one thing we're capable of perceiving
that transcends dimensions of time and space. Maybe we should trust that, even if we can't understand it. All right Cooper. Yes. The tiniest possibility of seeing Wolf again excites me. That doesn't mean I'm wrong.
Cooper: Honestly, Amelia... it might.

Doyle: Where's the rest?
Brand: Towards the mountains!
Cooper: Those aren't mountains... they're waves.
Brand: Oh shit. Oh shit!
Cooper: That one's moving away from us...
Brand: [struggling through the water] We need the recorder!
Cooper:
[he looks in the other direction and sees a mounting wave towering thousands of feet over them] Brand, Doyle, back to the Ranger, now!

Cooper: [whispering] Tell me something. Doctor Brand, and Edmonds...
TARS: Why are you whispering? They can't hear you.
Cooper: Doctor Brand and Edmonds, they close?
TARS: I wouldn't know.
Cooper: Is that a ninety percent wouldn't know, or ten percent wouldn't know?
TARS: I also have a discretion setting, Cooper.
Cooper: Ah. But not a poker face, huh?