“One basic weakness in a conservation system based wholly on economic motives is that most members of the land community have no economic value. Wildflowers and songbirds are examples. Of the 22,000 higher plants and animals native to Wisconsin, it is doubtful whether more than 5 per cent can be sold, fed, eaten, or otherwise put to economic use. Yet these creatures are members of the biotic community, and if (as I believe) its stability depends on its integrity, they are entitled to continuance.”
Source: A Sand County Almanac, 1949, "The Land Ethic", p. 210.
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Aldo Leopold 130
American writer and scientist 1887–1948Related quotes

Source: A Sand County Almanac, 1949, "The Land Ethic", p. 224-225.
Source: A Sand County Almanac and Sketches Here and There
Context: Examine each question in terms of what is ethically and esthetically right, as well as what is economically expedient. A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.

On Indian power plants, as quoted in "'We have to stop this Amethi-ising of the entire country, says Maneka Gandhi" http://indiatoday.intoday.in/story/everybody-treated-environment-ministry-as-an-angutha-chhaap-ministry-maneka-gandhi/1/316460.html, India Today (15 May 1990)
1981-1990
Source: In Defence Of Politics (Second Edition) – 1981, Chapter 5, A Defence Of Politics Against Technology, p. 94.

“Stalin-Wells Talk: The Verbatim Report and A Discussion”, G.B. Shaw, J.M. Keynes et al., London, The New Statesman and Nation, (1934) p. 35

Michel Henry, Material Phenomenology, Fordham University Press, 2008, p. 118-119
Books on Phenomenology and Life, Material Phenomenology (1990)

On judicial arrogance: United States v. Virginia (1996) (dissenting).
1990s

" Thoughts about the Tasks of the Future https://books.google.com/books?id=fG_oAAAAIAAJ&pg=PA87", by Gregor Strasser - (1926 June 15)

"Ray Lyman Wilbur", The Washington Post, June 28, 1949