There is time not only to see who has done what, but to speculate why.

We shall never achieve harmony with land, any more than we shall achieve absolute justice or liberty for people. In these higher aspirations, the important thing is not to achieve but to strive.

That land is a community is the basic concept of ecology, but that land is to be loved and respected is an extension of ethics.

Land health is the capacity for self-renewal in the soils, waters, plants, and animals that collectively comprise the land.

Thus far we have considered the problem of conservation of land purely as an economic issue. A false front of exclusively economic determinism is so habitual to Americans in discussing public questions that one must speak in the language of compound interest to get a hearing.

To keep every cog and wheel is the first precaution of intelligent tinkering.

Patriotism requires less and less of making the eagle scream, but more and more of making him think.