“ | If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family Anatidae on our hands. | ” |
--Douglas Adams, [1]
- ^ Adams, Douglas (1987). Dirk Gently's Holistic Detective Agency. New York, NY, US: Pocket Books. p. 270. ISBN 978-0-671-74672-8.