“One single war — we all know — may be productive of more evil, immediate and subsequent, than hundreds of years of the unchecked action of the mutual-aid principle may be productive of good.”
Mutual Aid: A Factor of Evolution (1902)
Help us to complete the source, original and additional information
Peter Kropotkin 141
Russian zoologist, evolutionary theorist, philosopher, scie… 1842–1921Related quotes

Source: 1930s-1950s, "The Nature of the Firm" (1937), p. 394-5
“Our lives may be more productive, but less inventive.”
Last Child in the Woods: Saving Our Children from Nature-Deficit Disorder

Source: Report of the Superintendent of the New York and Erie Railroad to the Stockholders (1856), p. 44; Cited in Vose (1857, p. 454), and Pickenpaugh (1998, p. 18)

“Our Nation, A Product of Christianity,” Springfield Republican, 1884, editorial.
1880s

Abolition of Animal Exploitation: The Journey Will Not Begin While We Are Walking Backwards, http://www.abolitionist-online.com

Source: A Treatise On Political Economy (Fourth Edition) (1832), Book II, On Distribution, Chapter VIII, Section III, p. 357

“Every political good carried to the extreme must be productive of evil.”
The French Revolution, Bk. V, ch. 4 (1794)