"Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts."

"If a child is to keep alive his inborn sense of wonder, he needs the companionship of at least one adult who can share it, rediscovering with him the joy, excitement, and mystery of the world we live …"

"The chemical war is not a war against insects alone, it is a war against the earth and all its inhabitants."

"The 'control of nature' is a phrase conceived in arrogance, born of the Neanderthal age of biology and philosophy, when it was supposed that nature exists for the convenience of man."

"I find the greatest wonder in the smallest things."