There are three things healthy people most need to do - to be creatively productive, to render service, and to act in accordance with their moral impulses. In all three respects modern society frustrates most people most of the time.

Infinite growth of material consumption in a finite world is an impossibility.

By means of trees, wildlife could be conserved, pollution decreased, and the beauty of our landscapes enhanced. This is the way, or at least one of the ways, to spiritual, moral, and cultural regeneration.

Wisdom demands a new orientation of science and technology toward the organic, the gentle, the elegant and beautiful.

We must do what we conceive to be the right thing, and not bother our heads or burden our souls with whether we are going to be successful. Because if we don't do the right thing, we'll be doing the wrong thing, and we will just be part of the disease, and not a part of the cure.

Anything that we can destroy, but are unable to make is, in a sense, sacred, and all our 'explanations' of it do not explain anything.

The generosity of the Earth allows us to feed all mankind; we know enough about ecology to keep the Earth a healthy place; there is enough room on the Earth, and there are enough materials, so that everybody can have adequate shelter; we are quite competent enough to produce sufficient supplies of necessities so that no one need live in misery.