Familiar Quotations / A Collection of Passages, Phrases, and Proverbs Traced to / Their Sources in Ancient and Modern Literature

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I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.

The Origin of Species. Chap. iii.

We will now discuss in a little more detail the Struggle for Existence.[622:3]

The Origin of Species. Chap. iii.

The expression often used by Mr. Herbert Spencer of the Survival of the Fittest is more accurate, and is sometimes equally convenient.[622:4]

The Origin of Species. Chap. iii.

Footnotes

[622:3] The perpetual struggle for room and food.—Malthus: On Population. chap. iii. p. 48 (1798).

[622:4] This survival of the fittest which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection, or the preservation of favoured races in the struggle for life."—Herbert Spencer: Principles of Biology. Indirect Equilibration.

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