The following report on Murphy's laws found on the Internet. You can never tell which way the train went by looking at the track.
Logic is a systematic method of coming to the wrong conclusion with confidence.
Whenever a system becomes completely defined, some damn fool discovers something which either abolishes the system or expands it beyond recognition. Technology is dominated by those who manage what they don't understand. If a builder built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization. The attention span of a computer is only as long as its electrical cord. An expert is one who knows more and more about less and less until he knows absolutely everything about nothing.