The 80-20, that I knew was on the Quality Management, that I learnt at work. The Pareto Chart/Rule states that ‘80% of the defects are caused by 20% of the causes. So by focussing on the 20 causes,you eliminate maximum defects.
Well, well, the other 80-20 that I just learnt, was the ultimate. An average person is 80% good. 20% bad. Before you critise/judge/fret about a person, stop. Can you can list his 80% of his goodness? If you can’t, then don’t go for his 20%!