Peter Jackson talks about Avatar

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I found this on the official Avatar page on Facebook.
Peter Jackson (The Lord of the Rings director), said:
"Avatar forces us to confront the issue of who we are and what we want, and to acknowledge the simple truth that, as a species, we are bound to a common fate, and so the future of humanity is in our hands."
You can actually find this sentence in the preface of the book "The art of Avatar" by Lisa Fitzpatrick...Peter Jackson wrote it.
Personally, I agree with him...Avatar made me think about the sense of life, it made me wonder about our future as humanity, and it showed me what the "common fate" would be if we...how can i say?..stand there twiddling our thumbs instead of taking care of our Earth...instead of taking care of us and other people..
What do you think about it?? Is there still hope for us??