“Intelligence is ongoing, individual adaptability. Adaptations that an intelligent species may make in a single generation, other species make over many generations of selective breeding and selective dying. Yet intelligence is demanding. If it is misdirected by accident or by intent, it can foster its own orgies of breeding and dying.”
Source: Parable of the Sower (1993), Chapter 4 (p. 29)
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Octavia E. Butler 107
American science fiction writer 1947–2006Related quotes

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: The Geological Evidences of the Antiquity of Man (1863), Ch.21, p. 410

p, 125
The Training of the Human Plant (1907)
Hence, people believed that genius and lunacy were intimately connected. Perhaps, nearly all of us “drive ourselves a little nuts” by virtue of creating stories that lead us to the illusion that we understand history, other people, causality, and life—when we don’t.
Source: Everyday Irrationality: How Pseudo-Scientists, Lunatics, and the Rest of Us Systematically Fail to Think Rationally (2001), Chapter 7, “Good Stories” (p. 125)

“Intelligence is the ability to adapt to change.”
Last Men in London (1932)