Anyone who has ever done any kind of searching on the internet for personal improvement and balance may have come across something called the 80/20 success secret. The name of this can be put some people off. Anything that has a fraction in the name is threatening to many individuals who struggled with math in school! The good news is that the 80/20 success secret isn't really all that complicated.
The Pareto principle (also known as the 80/20 rule and the law of the vital few) states that in many things, 80% of the consequences come from 20% of the causes.
Vilfredo Pareto, an Italian economist is credited with it. He observed that 80 percent of the land in England (and every country he subsequently studied) was owned by 20 percent of the population.