Gatto was a highly successful teacher and Iserbyt was a deputy secretary of education during in Reagan's first administration.
From Gatto's book:
The shocking possibility that dumb people don't exist in sufficient numbers to warrant the millions of careers devoted to tending them will seem incredible to you. Yet that is my central proposition: the mass dumbness which justifies official schooling first had to be dreamed of; it isn't real....
....David learns to read at age four; Rachel, at age nine: In normal development, when both are 13, you can't tell which one learned first—the five-year spread means nothing at all. But in school I label Rachel "learning disabled" and slow David down a bit, too. For a paycheck, I adjust David to depend on me to tell him when to go and stop. He won't outgrow that dependency. I identify Rachel as discount merchandise, "special education" fodder. She'll be locked in her place forever.