Quote by James Lovelock
"We must learn to live as if we have only one planet, because we do."
More from James Lovelock
"The Earth is a self-regulating system made up of physical, chemical, biological and human components"
"Gaia is a complex entity involving the Earth's biosphere, atmosphere, oceans, and soil; the totality constituting a feedback or cybernetic system"
"Life goes on adapting and evolving, but the health of the biosphere as a whole must be our first concern"
"We are the creatures of Gaia; we cannot exist without her"