Wilderness is a continuous stretch of country preserved in its natural state, open to lawful hunting and fishing, big enough to absorb a two weeks' pack trip, and kept devoid of roads, artificial trails, cottages, or other works of man.

There are men charged with the duty of examining the construction of the plants, animals, and soils which are the instruments of the great orchestra. These men are called professors. Each selects one instrument and spends his life taking it apart and describing its strings and sounding boards. This process of dismemberment is called research. The place for dismemberment is called a university.

All history consists of successive excursions from a single starting-point, to which man returns again and again to organize yet another search for a durable scale of values.

A profession is a body of men who voluntarily measure their work by a higher standard than their clients demand. To be professionally acceptable, a policy must be sound as well as salable. Wildlife administration, in this respect, is not yet a profession.

Man brings all things to the test of himself, and this is notably true of lightning.

Civilization has so cluttered this elemental man-earth relationship with gadgets and middlemen that awareness of it is growing dim. We fancy that industry supports us, forgetting what supports industry.

Wilderness is the raw material out of which man has hammered the artifact called civilization.

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.

All ethics so far evolved rest upon a single premise: that the individual is a member of a community of interdependent parts.... That man is, in fact, only a member of a biotic team is shown by an ecological interpretation of history. Many historical events, hitherto explained solely in terms of human enterprise, were actually biotic interactions between people and land.... Is history taught in this spirit? it will be, once the concept of land as a community really penetrates our intellectual life.