A hole had just appeared in the Galaxy. It was exactly a nothingth of a second long, a nothingth of an inch wide, and quite a lot of million light years from end to end. As it closed up [...] Two hundred and thirty-nine thousand lightly fried eggs fell out of it...materializing in a large woobly heap on the famine-struck land of Poghril in the Pansel system. The whole Poghril tribe had died out from famine except for one last man who died of cholesterol poisoning some weeks later.

Humans think they are smarter than dolphins because we build cars and buildings and start wars etc., and all that dolphins do is swim in the water, eat fish and play around. Dolphins believe that they are smarter for exactly the same reasons.

A theory of the universe that states: If anyone finds out what the universe is for, it will disappear and be replaced by something more bizarrely inexplicable.

One is never alone with a rubber duck.

What to do if you find yourself stuck in a crack in the ground underneath a giant boulder you can't move, with no hope of rescue. Consider how lucky you are that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your current circumstances seems more likely, consider how lucky you are that it won't be troubling you much longer.

After a while he played with the pencil and the paper again and was delighted when he discovered how to make a mark with the one on the other. Various noises continued outside, but he didn't know whether they were real or not. He then talked to his table for a week to see how it would react.

If you really want to understand something, the best way is to try and explain it to someone else.