“The human mind works at low efficiency. Twenty percent is the figure usually given. When, momentarily, there is a flash of greater power, it is termed a hunch, or insight, or intuition.”

“The idea of authority, which they represented, was associated in our minds with a greater insight and a more humane wisdom.”

“This is ten percent luck, Twenty percent skill, Fifteen percent power of will, Five percent pleasure, Fifty percent pain, and a hundred percent reason to remember the name.”

“Economists often talk about the 80/20 Principle, which is the idea that in any situation roughly 80 percent of the “work” will be done by 20 percent of the participants. In most societies, 20 percent of criminals commit 80 percent of crimes. Twenty percent of motorists cause 80 percent of all accidents. Twenty percent of beer drinkers drink 80 percent of all beer. When it comes to epidemics, though, this disproportionality becomes even more extreme: a tiny percentage of people do the majority of the work.”

“Intuition is the art, peculiar to the human mind, of working out the correct answer from data that is, in itself, incomplete or even, perhaps, misleading.”

“People learn twenty-five percent from their teacher, twenty-five percent from listening to themselves, twenty-five percent from their friends, and twenty-five percent from time.”