Opening up the "Dalai Lama's Little Book of Inner Peace" at Random

 From page 144 and 145:

"The planet is our home. Taking care of our world and of our planet is like looking after our own home.In a way one can say that the earth is our mother. She is so good that whatever we do she puts up with it. But now the time has come when our destructive power is so vast that our mother is obliged to call us to account. Isn't the population explosion not a clear sign of this? Nature itself has limits."

end quote on page 145 of "The Dalai Lamas Little Book of Inner Peace".