Simple. I got very bored and depressed, so I went and plugged myself in to its external computer feed. I talked to the computer at great length and explained my view of the Universe to it," said Marvin. "And what happened?" pressed Ford. "It committed suicide," said Marvin and stalked off back to the Heart of Gold.

It's the story of my life. You see, the quality of any advice anybody has to offer has to be judged against the quality of life they actually lead. Now, as you look through this document you'll see that I've underlined all the major decisions I ever made to make the stand out. They're all indexed and cross-referenced. See? All I can suggest is that if you take decisions that are exactly opposite to the sort of decisions that I've taken, then maybe you won't finish up at the end of your life" --she paused, and filled her lungs for a good should--"in a smelly old cave like this!

Don't believe anything you read on the net. Except this. Well, including this, I suppose.

Very strange people, physicists - in my experience the ones who aren't dead are in some way very ill.

The Hitch-Hiker's Guide to the Galaxy also mentions alcohol. It says that the best drink in existence is the Pan Galactic Gargle Blaster, the effect of which is like having your brains smashed out with a slice of lemon wrapped round a large gold brick.

Yes, it is true that sometimes unusually intelligent and sensitive children can appear to be stupid. But stupid children can sometimes appear to be stupid as well. I think that's something you might have to consider.

One of the major problems encountered in time travel is not that of accidentally becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broadminded and well-adjusted family can't cope with.