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.
Technology is dominated by those who manage what they do not understand.
If builders built buildings the way programmers wrote programmes, then the first woodpecker that came along would destroy civilization.
An expert is one who knows more and more about less and less until he/she knows absolutely everything about nothing.
All great discoveries are made by mistake.
Nothing ever gets built on schedule or within budget.
All's well that ends... period.
The first myth of management is that it exists.
A failure will not appear until a unit has passed final inspection.
New systems generate new problems.
To err is human, but to really foul things up requires a computer.