Related:

• Light is useless without a dark to stick it in!
• Dark, no light. -- The Hitch Hiker's Guide to the Galaxy
• To see the light, you have to be in the dark. -- The SpamPope
• There are two types of dirt: The dark kind, which is attracted to light objects, and the light kind, which is attracted to dark objects.
• You can't have a light without a dark to stick it in. -- Arlo Guthrie
• Isn't tonight a school night?
  -- Superman asks an interrogative of a traunt Robin -- in a tank in THE DARK KNIGHT FALLS...
• How many gully dwarves -- does it take to change a light light bulb? You sure it's dark?
• Fighting for peace is like screwing for virginity." -- George Carli
• The sixties were good to you, weren't they? -- George Carli