It can hardly be a coincidence that no language on earth has ever produced the expression "As pretty as an airport." Airports are ugly. Some are very ugly. Some attain a degree of ugliness that can only be the result of a special effort. This ugliness arises because airports are full of people who are tired, cross, and have just discovered that their luggage has landed in Murmansk (Murmansk airport is the only exception of this otherwise infallible rule), and architects have on the whole tried to reflect this in their designs.

Life,” said Marvin dolefully, “loathe it or ignore it, you can’t like it.

Shee, you guys are so unhip it's a wonder your bums don't fall off.

Zaphod felt he was teetering on the edge of madness and wondered if he shouldn't just jump over and have done with it.

It is most gratifying," it said, "that your enthusiasm for our planet continues unabated, and so we would like to assure you that the guided missiles currently converging with your ship are part of a special service we extend to all of our most enthusiastic clients, and the fully armed nuclear warheads are of course merely a courtesy detail. We look forward to your custom in future lives ... thank you.

Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of.

Assumptions are the things we don't know we're making.