If anything can't possibly go wrong, it will anyway.
Anything that can go wrong, will.
If things appear to be going better, you've overlooked something.
Nothing ever gets built on schedule or within budget.
Just when you finally figure out where it's at, somebody moves it.
Everything tastes more or less like chicken.
No project is ever a complete failure. It can always be used as a bad example.
When you demonstrate something, the number of problems is proportional to the number of viewers.
Anything is possible, but nothing is easy.
History proves nothing.