Quote from : O Brother, Where Art Thou? Movie

Ulysses Everett McGill: The treasure is still there boys, believe me.
Delmar O'Donnell: But how'd he know about the treasure?
Ulysses Everett McGill: I don't know Delmar. The blind are reputed to possess sensitivities compensating for their lack of sight, even to the point of developing paranormal psychic powers. Now, clearly seeing into the future would fall into neatly into that category; its not so surprising then that an organism deprived of its earthly vision...
Pete: He said we wouldn't get get it. He said we wouldn't get the treasure we seek on account of our ob-stac-les.
Ulysses Everett McGill: Well what the hell does he know, he's just an ignorant old man?