From an American spiritual leader:
Oren Lyons, seventy-six, is a wisdom carrier, one of the bearers of a variety of human tradition that can’t easily be reduced to a couple of sentences….

After the Peace Maker gathered five warring nations—the Mohawks, the Oneidas, the Cayugas, the Senecas, and the Onondagas—and after great efforts and great cohesive work, the power of the unity of the good minds brought together this confederacy based on peace. And after he had taken the leaders and sat them under this great tree on the shoreline of Onondaga Lake and instructed them on the process of governance, on the principles of governance, on the importance of identity and the importance of rule and law, he said, “Now that we’ve planted this great tree, in your hands now I place all life. Protection of all life is in your hands now,” and when he said all life, he meant literally, all life.

And it’s an instruction that we carry today. We feel responsible for animals, we feel responsible for trees, and responsible for fish, responsible for water. We feel responsible for land and all of the insects and everything that’s there. And when he spoke of the four white roots reaching in the four directions, I think he was talking to all people. Not just Haudenosaunee. This is an instruction for all people.

But after all of that, a woman said to him, “Well then,” she said, “how long will this last?” And he answered, “That’s up to you.” So it’s completely up to us if we want this Creation to continue, and if we want to be involved in it, a part of this whole recycling, this whole regeneration of life, and we want to be celebrating it, and we want to be enjoying it, and we want to be preserving it, carrying it on, protecting it for future generations.

http://www.orionmagazine.org/pages/om/07-1om/Lopez-Lyons.html