Unknown

“A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.”
― Douglas Adams, Mostly Harmless

“The Guide says there is an art to flying", said Ford, "or rather a knack. The knack lies in learning how to throw yourself at the ground and miss.”
― Douglas Adams, Life, the Universe and Everything

“I refuse to answer that question on the grounds that I don't know the answer”
― Douglas Adams

“The ships hung in the sky in much the same way that bricks don't.”
― Douglas Adams, The Hitchhiker’s Guide to the Galaxy