Pratt’s founding principle for the Carlisle Indian Industrial School was to “Kill the Indian and save the man.” "Pratt saw his education program with the Native Americans as analogous to his domestication of wild turkeys". Apparently, he took a nest of wild turkey eggs to be mothered by his barnyard hen, and they became as assimilated as his best domesticated turkeys. They only needed, in Pratt's words, “the environment and kind treatment of domestic civilized life to become a very part of it". Pratt believed that the Native Americans should be totally uprooted from their tribal past in order to “achieve full participation.” In practice, this meant erasing, as much as possible, any trace of Native American customs, culture, language and religion from the children at the school.
"They told us that Indian ways were bad. They said we must get ‘civilized’....It means ‘be like the white man’... And the books told how bad the Indians had been to the white men —- burning their towns and killing their women and children. But I had seen white men do that to Indians. We all wore white man's clothes and ate white man's food and went to white man's churches and spoke white man's talk. And so after a while we also began to say Indians were bad. We laughed at our own people...”
Parents were often coerced – or outright forced – to send their children to schools like Carlisle. Indian Affairs Commissioner Thomas Jefferson Morgan explained: "I would...use the Indian police if necessary. I would withhold from [the Indian adults] rations and supplies...and when every other means was exhausted...I would send a troop of United States soldiers...”
"None of us wanted to go and our parents didn't want to let us go....I remember looking back at Na-tah-ki and she was crying too....Once there our belongings were taken from us, even the little medicine bags our mothers had given to us to protect us from harm. Everything was placed in a heap and set afire. Next was the long hair, the pride of all the Indians. The boys, one by one, would break down and cry when they saw their braids thrown on the floor. All of the buckskin clothes had to go and we had to put on the clothes of the White Man.”
To save their children from capture, some parents taught their children a hiding “game” to be used when Indian Affairs officers arrived. The Hopi nation surrendered groups of their men to prison sentences in Alcatraz rather than send their children to the schools.
"(O)ne of the boys said something in Indian to another boy. The man in charge of us pounced on the boy, caught him by the shirt, and threw him across the room. Later we found out that his collar-bone was broken.”
The children who arrived at Carlisle able to speak some English were presented to the other children as “translators”. The authorities at the School, however, used these children’s traditional respect for elders to turn them into informants, used to catch other children’s misbehaviors.
Part of the culture the School sought to destroy was reflected in the children’s names. While traditional Native American names reflected relationships and life experiences, the new names were assigned randomly from a list of “acceptable” names.
"The boys and girls at Carlisle Indian School were trained to be cannon fodder in American wars, to serve as domestics and farm hands, and to leave off all ideas or beliefs that came to them from their Native communities, including and particularly their belief that they were entitled to land, life, liberty, and dignity....separated from all that is familiar; stripped, shorn, robbed of their very self; renamed.
By the time the “noble experiment” at Carlisle ended, over 10,000 children had been through the school. Less than 8% graduated while well over twice that many ran away.
Pratt experienced conflict with government officials over his outspoken views on the need for Native Americans to assimilate. This led to Pratt's forced retirement as superintendent of the Carlisle School on June 30, 1904. After Pratt was forced the school became popular for football, sports, there outing, and there trade industries.
Today, the School is most widely remembered for its star American football player, Jim Thorpe and their team the Carlisle Indians, coached by Glenn Scobey "Pop" Warner. The Carlisle Indians also have the best winning percentage (.647) of any defunct college football team.
The April 23, 2007, issue of Sports Illustrated included an excerpt from a new book about the Carlisle Indians, by Sally Jenkins, characterizing them as "The Team that Invented Football," due to the innovations introduced by Warner, which turned the team into a national football power and opened up the game's offensive strategy significantly.