1.Notheing is as easy as it looks.
2.Everything takes longer than you think.
3.Anything that can go wrong will go wrong.
4.If there is a possibility of several things going wrong,
the one that will cause the most damage will be the one to go wrong.
5.If any things simply cannot go wrong, it will anyway.
6.If everything seems to be go wrong, you have obviously overlooked something.
7.Nature always sides with the hidden flaw.
8.It's impossible to make anything foolproof because fools are so ingenious.
9.Where you set out to do something, something else must be done first.
10.Every solution breeds new problems.