The Pareto Principle is a principle that states that, for many events, roughly 80% of the effects come from 20% of the causes. It was originally proposed by Italian economist Vilfredo Pareto in 1906. The 80/20 rule is a way to think about how to divide work between employees. It states that 80% of the work should be done by 20% of the people while 20% of the work should be done by 80%. The idea behind this rule is to make sure that you don't waste time and energy on tasks that are not your expertise and focus on what you are best at - creativity and emotions.