- [prelogue]
- Control Voice: In the not-distant future, the sound of Man will invade those unknown depths of space which, as yet, we can not even imagine. In his own world, there are no places left beyond the reach of his voice. His neighbor is no longer just next door but anywhere at the end of his wire, and it all began when prehistoric man discovered the art of communication.
- [epilogue]
- Control Voice: And the light shineth in the darkness, and the darkness comprehended it not. The sound of Man probes the dimensionless range of space, seeking an anwer; but, if it comes, will he hear? Will he listen? Will he comprehend?
- Karen Thorne: No wind.
- Andy Thorne: Hasn't been any wind all day.
- Karen Thorne: Then what's moving that tumbleweed?
- Karen Thorne: Listen. What do you hear?
- Andy Thorne: Nothing.
- Karen Thorne: That's right. Not one sound.
- Andy Thorne: It is kind of lonesome here.
- Karen Thorne: Oh, no, we're not alone. There's something here.
- Andy Thorne: We gotta figure this thing out logically. I know we're faced with something that defies logic, but it's all we got to work with.
- Karen Thorne: In a cathedral you whisper, because to raise your voice would be sacrilege. Here? I don't know. I think if I shouted, the sound would die.