I love this quote.
"Luckily," he went on, "you have come to exactly the right place with your interesting problem, for there is no such word as 'impossible' in my dictionary. In fact," he added, brandishing the abused book, "everything between 'herring' and 'marmalade' seems to be missing."
(From Dirk Gently's Holistic Detective Agency by Douglas Adams)
I used to have this book, and the sequel, The Long Dark Teatime of the Soul, and I really liked them both. Especially the first, because it was the only time I'd seen anyone mix Samuel Taylor Coleridge poetry, time travel, electric monks, and sofas into one coherent story.