“We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.”

“But shortcuts are dangerous; we cannot delude ourselves that our knowledge is further along than it actually is.”

“Let's be clear. The planet is not in jeopardy. We are in jeopardy. We haven't got the power to destroy the planet - or to save it. But we might have the power to save ourselves.”

“God cannot take sides; for He is in all of us. We are all a part of Him, and when we try to destroy Him, we destroy ourselves.”

“America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves.”

“... by treating nature as exterior and inferior to humans we saw no harm to ourselves in polluting the soil, the plants, the air and the water. We did not notice the effect of our pollution on whatever walked over it, ran across it, climbed up it, flew through it, or swam in it.Now we notice that harming other constituents of our planetary system brings harm to ourselves.”