Pareto’s Law the 80/20 Rule

What gets measured gets managed – Peter Drucker

The 4-Hour Work Week – Timothy Ferris

The 80-20 rule, also known as the Pareto Principle, is an aphorism which asserts that 80% of outcomes (or outputs) result from 20% of all causes (or inputs) for any given event.

  • 80% of the consequences flow from 20% of the causes
  • 80% of the RESULTS flow from 20% of the EFFORT AND TIME

Parkinson’s Law

“Parkinson’s Law dictates that a task will swell in (perceived) importance and complexity in relation to the time allotted for its completion. It”

Timothy Ferris – The 4-Hour Work Week

It’s amazing how someone’s IQ seems to double as soon as you give them responsibility and indicate that you trust them.

Timothy Ferris – The 4-Hour Work Week
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Eliminate before you DelegateThe 4-Hour Work Week


Tribes – Seth Godin