All ethics so far evolved rest upon a single premise: that the individual is a member of a community of interdependent parts. … The land ethic simply enlarges the boundaries of the community to include soils, waters, plants, and animals, or collectively: the land. … A land ethic changes the role of Homo sapiens from conqueror of the land-community to plain member and citizen of it. It implies respect for his fellow-members, and also respect for the community as such.

p. 203-204. - A Sand County Almanac, 1949 - "The Land Ethic"