The Pareto principle (also known as the 80-20 rule, the law of the vital few and the principle of factor sparsity) states that, for many events, 80% of the effects come from 20% of the causes.
Business management thinker Joseph M. Juran suggested the principle and named it after Italian economist Vilfredo Pareto, who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales come from 20% of your clients."
Link-
http://en.wikipedia.org/wiki/Pareto_principle

Now, I wonder,

If it applies here also-
1 80% of our thoughts are about 20% of things?
2 80% of what we speak, has only 20% meaning?
3 80% of us are unhappy about 20% things we don’t have?
4 80% of us want to be part of balance 20%?
5 80% of men run after 20% women?
LOL….,
Getting confused.
And again 80% of us are already confused ?