The world is not going to survive very much longer as humanity’s captive.

If you don't know your history, you don't know what you are talking about!

It is horrifying that we have to fight our own government to save the environment.

If civilization is to survive it must live on the interest not the capital of nature

Do all to change your environment; don’t allow your environment to change you.

Where do we record the passing of wildlife? Who mourns the silent deaths of the small?

There's one thing you can say for air pollution, you get utterly amazing sunrises.

There are many good seeds in you. Therefore you must avoid every bad soil in the world.

Progress is measured by the speed at which we destroy the conditions that sustain life.

We must have clean air and water, and beautiful natural foods for everyone, everywhere.

If civilization is to survive, it must live on the interest, not the capital, of nature.

Suburbia is where the developer bulldozes out the trees then names the streets after them

What's the use of a fine house if you haven't got a tolerable planet to put it on?

One of the penalties of an ecological education is that one lives alone in a world of wounds.

If the bee disappeared off the face of the earth, man would only have four years left to live.