Brauch mal eure Hilfe :-)

Also wir müssen eine Zusammenfassung schreiben. Da ich nicht so gaanz dolle in Englisch bin, wollte ich euch mal bitten, nach Fehlern zu suchen, oder ob grammatikalisch etwas nicht korrekt ist.


Summary
The story "How can one sell the air" is about the problem, that a white man wants to buy a piece of land from the Indians.
The Chief of the Indians, who is called, Chief Seattle, can´t understand, why the whites want to buy it. He and his people think, that people can´t buy a piece of land. This thinking is part of the Indian philosophy. The Indians suggest, the Whites treatment of the land isn´t very good. Also this has many consequences for the life of the Indians. They think that all things belongs together and every people of the world is a part of a net, which is called, the Earth. If something happens to the Earth, it goes back to the people.

Vielen Dank für Eure Hilfe schon einmal.
Achso der Text heisst "How can one sell the air?" und stammt aus einem Buch.