But, remember, just when you think you know all the laws, another one appears. If anything can go wrong, it will.
Nothing is as easy as it looks.
Everything takes longer than you think. Doing it the hard way is always easier in the long run. Research will always tend to support your theory, if you do enough of it. If success is at first not achieved, every effort will be made to hide the fact that it was even attempted. People who smile when things are going wrong have already thought of who will get the blame.