I love all trees, but I am in love with pines.

Education, I fear, is learning to see one thing by going blind to another.

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

The most important characteristic of an organism is that capacity for internal self-renewal known as health. There are two organisms whose processes of self-renewal have been subjected to human interference and control. One of these is man himself (medicine and public health). The other is land (agriculture and coservation). The effort to control the health of land has not been very successful.

For unnumbered centuries of human history the wilderness has given way. The priority of industry has become dogma. Are we as yet sufficiently enlightened to realize that we must now challenge that dogma, or do without our wilderness? Do we realize that industry, which has been our good servant, might make a poor master?

Conservation is a state of harmony between men and land.

That dark laboratory we call the soil.