Murphy's Technology Law #1: You can never tell which way the train went by looking at the track.
Murphy's Technology Law #2: Logic is a systematic method of coming to the wrong conclusion with confidence.
Murphy's Technology Law #3: Technology is dominated by those who manage what they do not understand.
Murphy's Technology Law #4: If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization.
Murphy's Technology Law #5: An expert is one who knows more and more about less and less until he/she knows absolutely everything about nothing.
Murphy's Technology Law #6: Tell a man there are 300 billion stars in the universe, and he'll believe you. Tell him a bench has wet paint on it, and he'll have to touch to be sure.
Murphy's Technology Law #7: All great discoveries are made by mistake.
Murphy's Technology Law #8: Nothing ever gets built on schedule or within budget.
Murphy's Technology Law #9: All's well that ends... period.
Murphy's Technology Law #10: A meeting is an event at which minutes are kept and hours are lost.
Murphy's Technology Law #11: The first myth of management is that it exists.
Murphy's Technology Law #12: A failure will not appear until a unit has passed final inspection.
Murphy's Technology Law #13: New systems generate new problems.
Murphy's Technology Law #14: To err is human, but to really foul things up requires a computer.
Murphy's Technology Law #15: We don't know one-millionth of one percent about anything.
Murphy's Technology Law #16: Any given program, when running, is obsolete.
Murphy's Technology Law #17: A computer makes as many mistakes in two seconds as 20 men working 20 years make.
--from GCFL for Today
(-: Murphy's Technology Law #18 Why did the chicken cross the road? Because Confucius programmed it :-)