The 80/20 Rule is one of the most helpful of all concepts of time and life management. It is also called the “Pareto Principle” after the Italian economist Vilfredo Pareto, who first wrote about it in 1895. Pareto noticed that people in his society seemed to divide naturally into what he called the “vital few,” the top 20 percent in terms of money and influence, and the “trivial many,” the bottom 80 percent.
