Thorin Oakenshield: [after putting in the key and opening the door] Erebor.
Balin: [In tears] Thorin.
Thorin Oakenshield: I know these walls. These halls. This stone. Do you remember it Balin? Chambers filled with golden light.
Balin: I remember.
Gloin: [Reading the Dwarvish writing in the stone] Herein lies the 7th kingdom of Durin's folk. May the heart of the mountain unite all dwarves in defense of this home.
Balin: The throne of the king.
Bilbo Baggins: [Observing the carving] And what's that, above it?
Balin: The arkenstone.
Bilbo Baggins: And what's that?
Thorin Oakenshield: That, Master Burglar, is why you are here.