Aldo Leopold

Examine each question in terms of what is ethically and aesthetically right, as well as what is economically expedient.

Recreational development is a job not of building roads into the lovely country, but of building receptivity into the still unlovely human mind.

Conservation is a state of harmony between men and land.

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.

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

One swallow does not make a summer, but one skein of geese, cleaving the murk of March thaw, is the Spring.