This world's a treasure, Donald, but it's been telling us to leave for a while now. Mankind was born on Earth, it was never meant to die here.
Context: Cooper explains to his father-in-law why he is leaving the farm for the mission.
Once you're a parent, you're the ghost of your children's future.
Cooper: Hey, TARS, what's your honesty parameter? TARS: 90%. Cooper: 90%? TARS: Absolute honesty isn't always the most diplomatic, nor the safest form of communication with emotional beings.
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 yet.
Murph: Why did you and Mom name me after something that's bad? Cooper: Well, we didn't. Murph: Murphy's Law? Cooper: Murphy's Law doesn't mean that something bad will happen. What it means is…
CASE: It's not possible. Cooper: No… It's necessary.
Well, we used to look up in the sky and wonder at our place in the stars. Now we just look down and worry about our place in the dirt.