'While the ring of the Golden Age Green Lantern  was magically powered, the rings worn by all subsequent Lanterns were technological creations of the Guardians of the Universe, who granted such rings to worthy candidates."

Light is good from whatever lamp it shines

What is true by lamplight is not always true by sunlight.  ~Joseph Joubert

In the beginning there was nothing.  God said, "Let there be light!"  And there was light.  There was still nothing, but you could see it a whole lot better.  ~Ellen DeGeneres

You can't have a light without a dark to stick it in.  ~Arlo Guthrie