In the Eye of the Beholder An Essay from Field Notes on Science and Nature by Jonathan Kingdon Haven't you noticed?Wordless questioningOutlinesAgents of thought and experiment
The Pareto principle The Pareto principle (also known as the 80/20 rule, the law of the vital few, or the principle of factor sparsity) states that, for many events, roughly 80% of the effects come from 20% of the causes. Wikipedia en.wikipedia.org 80/20 is the new Half-Ass