Red: [narrating] In 1966, Andy Dufresne escaped from Shawshank prison. All they found of him was a muddy set of prison clothes, a bar of soap, and an old rock hammer, damn near worn down to the nub. I remember thinking it would take a man six hundred years to tunnel through the wall with it. Old Andy did it in less than twenty. Oh, Andy loved geology. I imagine it appealed to his meticulous nature. An ice age here, million years of mountain building there. Geology is the study of pressure and time. That's all it takes really, pressure, and time.
Red: I played a mean harmonica as a younger man. Lost interest in it though. Didn't make much sense in here.
Andy Dufresne: Here's where it makes the most sense. You need it so you don't forget.
Andy Dufresne: Forget that... there are places in this world that aren't made out of stone. That there's something inside... that they can't get to, that they can't touch. That's yours.
Red: What're you talking about?
Andy Dufresne: Hope.
Red: Let me tell you something my friend. Hope is a dangerous thing. Hope can drive a man insane.
– “The Shawshank Redemption” (1994)