“Contrary to the ecologists, nature does not stand still and does not maintain the kind of equilibrium that guarantees the survival of any particular species - least of all the survival of her greatest and most fragile product: man.”
Source: The New Left: The Anti-Industrial Revolution (1971), p. 134
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Ayn Rand 322
Russian-American novelist and philosopher 1905–1982Related quotes
Source: Complexity and Postmodernism (1998), p. 4; as cited in Richard Andrews et al. (2012, p. 129)

“Nature is indifferent to the survival of the human species, including Americans.”
Radio address (29 September 1952)

The Principles of Biology, Vol. I (1864), Part III: The Evolution of Life, Ch. 7: Indirect Equilibration
Principles of Biology (1864)
Context: It cannot but happen that those individuals whose functions are most out of equilibrium with the modified aggregate of external forces, will be those to die; and that those will survive whose functions happen to be most nearly in equilibrium with the modified aggregate of external forces.
But this survival of the fittest, implies multiplication of the fittest. Out of the fittest thus multiplied, there will, as before, be an overthrowing of the moving equilibrium wherever it presents the least opposing force to the new incident force.


The earliest known appearance of this basic statement is a paraphrase of Darwin in the writings of Leon C. Megginson, a management sociologist at Louisiana State University. [[Megginson, Leon C., Lessons from Europe for American Business, Southwestern Social Science Quarterly, 1963, 44(1), 3-13, p. 4]] Megginson's paraphrase (with slight variations) was later turned into a quotation. See the summary of Nicholas Matzke's findings in "One thing Darwin didn't say: the source for a misquotation" http://www.darwinproject.ac.uk/one-thing-darwin-didnt-say at the Darwin Correspondence Project. The statement is incorrectly attributed, without any source, to Clarence Darrow in Improving the Quality of Life for the Black Elderly: Challenges and Opportunities : Hearing before the Select Committee on Aging, House of Representatives, One Hundredth Congress, first session, September 25, 1987 (1988).
Misattributed

As quoted in Improving the Quality of Life for the Black Elderly: Challenges and Opportunities : Hearing before the Select Committee on Aging, House of Representatives, One Hundredth Congress, first session, September 25, 1987 (1988)
This quote's earliest known source is from Leon C. Megginson (see Charles Darwin)
Misattributed

Source: A Vindication of the Rights of Woman (1792), Ch. 3
Context: Should it be proved that woman is naturally weaker than man, from whence does it follow that it is natural for her to labour to become still weaker than nature intended her to be? Arguments of this cast are an insult to common sense, and savour of passion. The divine right of husbands, like the divine right of kings, may, it is to be hoped, in this enlightened age, be contested without danger, and though conviction may not silence many boisterous disputants, yet, when any prevailing prejudice is attacked, the wise will consider, and leave the narrow-minded to rail with thoughtless vehemence at innovation.