Exactly!"said Deep Thought. "So once you do know what the qu... - Douglas Adams, The Hitchhiker's Guide to the Galaxy

"What's up?"[asked Ford.]I don't know,"said Marvin, "I've never been there."

"So this is it,"said Arthur, "We are going to die.""Yes,"said Ford, "except... no! Wait a minute!"He suddenly lunged across the chamber at something behind Arthur's line of vision. "What's this switch?"he cried."What? Where?"cried Arthur, twisting round."No, I was only fooling,"said Ford, "we are going to die after all."

"So this is it,"said Arthur, "We are going to die.""Yes,"said Ford, "except... no! Wait a minute!"He suddenly lunged across the chamber at something behind Arthur's line of vision. "What's this switch?"he cried."What? Where?"cried Arthur, twisting round."No, I was only fooling,"said Ford, "we are going to die after all."

"What does it matter? Science has achieved some wonderful things, of course, but I'd far rather be happy than right any day."

"Exactly!"said Deep Thought. "So once you do know what the question actually is, you'll know what the answer means."