The world doesn't belong to us. Man has been created by Mother Nature . Mankind belongs to planet Earth . We are a part of Mother Nature , we belong to it , just like other animals . Who/what belongs to something can't own it at the same time . When someone builds a house , he owns it because it was built by him . Someone else who enters his house and then leaves it is just a visitor . Someone who wants to live in it , is just the tenant of the owner of this house . The same logic applies for Mankind . Planet Earth is a kind of house in which we were created . We are just tenants of planet Earth , thus we can't claim what is not ours , because we have not created this planet . Hence the existence of countries is not morally right because it implies ownership of land . However , Man has thought that he could own Earth instead of just being a part of it . Then he has created ownership of land . He has appropriated mainly by force what has never belonged to him . Why ? Cupidity , selfishness , conceit . The only people who deserve this Earth are those who don't own it .Those who are nomads and consider themselves as being of a part of a whole , those who have not created boundaries , are the only people who deserve to live on it . Indians of America are one of these peoples .