"And should the world exhaust its usefulness, should its resources be completely taken, then you will be left, bereft."
A Verdant World
"You cannot yet appreciate how beautiful your world is, how much it possesses and what a rare jewel it is in a Greater Community of barren worlds and empty space. Worlds such as yours are rare indeed. Most places in the Greater Community that are inhabited now have been colonized, and technology has made this possible. But worlds such as yours where life has evolved naturally, without the aid of technology, are far more rare than you might realize." 
"Are there many worlds such as ours in space? There are many worlds that have been stripped of their natural resources and have become barren as a result. Certainly, terrestrial worlds such as yours are rare, maybe one out of five or six thousand planets contain the biological diversity that you enjoy and take for granted here in your world. That still accounts for many planets in the universe. But such planets are always occupied, are always valued and the native races always have to defend their rights, their privileges and their stewardship as they begin to emerge into the Greater Community."
The Exploitation of Planet Earth
"Humanity is viewed by those few races who pay attention to this world as being chaotic, unruly and potentially dangerous. You are certainly not highly regarded for the way the Earth is being exploited and its wealth is being plundered." 
The Sacred Earth
"In some traditions the Earth itself is considered sacred–the entire Earth, not one particular place. But the Earth is not sacred; it is just the Earth."