A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.



In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.



There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.



The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair.



Nothing travels faster than the speed of light, with the possible exception of bad news, which obeys its own set of laws.