Then one day the white man discovered that the Indian tribes still owned some 135 million acres of land. To his horror he learned that much of it was very valuable. Some was good grazing land, some was farm land, some mining land, and some covered with timber. Animals could be herded together on a piece of land, but they could not sell it. Therefore it took no time at all to discover that Indians were really people and should have the right to sell their lands. Land was the means of recognizing the Indian as a human being. It was the method whereby land could be stolen legally and not blatantly. (7)

Custer Died for your Sins (1969)
Vine Deloria, Jr.