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The tendency to variation in living beings, which all admitted as a matter of fact; the selective influence of conditions, which no one could deny to be a matter of fact, when his attention was drawn to the evidence; and the occurrence of great geological changes which also was matter of fact; could be used as the only necessary postulates of a theory of the evolution of plants and animals which, even if not at once, competent to explain all the known facts of biological science, could not be shown to be inconsistent with any.

The tendency to variation in living beings, which all admitted as a matter of fact; the selective influence of conditions, which no one could deny to be a matter of fact, when his attention was drawn to the evidence; and the occurrence of great geological changes which also was matter of fact; could be used as the only necessary postulates of a theory of the evolution of plants and animals which, even if not at once, competent to explain all the known facts of biological science, could not be shown to be inconsistent with any.

Approximate author period: c. 1860 AD · industrial

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Attribution & collection notes
Author or tradition
Thomas Henry Huxley
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1860 AD · industrial
Approximate period for the recorded attribution to Thomas Henry Huxley, based on documented lifetime 1825 to 1895. Source: https://www.wikidata.org/wiki/Q184366 (checked 2026-10-08). This is not a quotation composition date or independent authentication of its attribution. Source: https://www.wikidata.org/wiki/Q184366 (accessed 2026-10-08).
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
Recorded source
Contributor-provided quotation collection

Supplied reference C; CSV row 268670; supplied attribution, independently unverified

A collection's publication date can be later than the words it records.