From a wonderful series of 'poems' put on YouTube.
This starts off
How can you buy or sell the sky, the warmth of the land? The idea is strange to us..
If we do not own the freshness of the air and the sparkle of the water, how can you buy them?
Every part of this earth is sacred to my people. Every shining pine needle, every sandy shore, every mist in the dark woods, every clearing and humming insect is holy in the memory and experience of my people. The sap, which courses through the trees carries the memories of the red man.
The white man's dead forget the country of their birth when they go to walk among the stars. Our dead never forget this beautiful earth, for it is the mother of the red man. We are part of the earth and it is part of us. The perfumed flowers are our sisters; the deer, the horse, the great eagle, these are our brothers. The rocky crests, the juices in the meadows, the body heat of the pony, and man --- all belong to the same family.
The text can be found here
An illustrated transcript can be bought in the UK here The World of Chief Seattle: How Can One Sell the Air?