J.T. Marsh and Algernon in “A Night Before Doomsday”

If we're wrong the sun may never rise on the Earth again.

The sun is always rising somewhere. After all, our darkness means light to the other side of the world.

Heh. You almost sound optimistic, Professor. How would a doomsday device work?

If I were going to destroy the Earth, and I had as little imagination as Phaeton, I'd simply blow it up.