“I do not propose to argue the case for evolution, which I regard as being quite as well proven as most other historical facts, but to discuss its possible causes, which are certainly debatable.”
Introduction, pp. 3-4.
The Causes of Evolution (1932)
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J. B. S. Haldane 32
Geneticist and evolutionary biologist 1892–1964Related quotes

The United States (1971)
Context: The Senate has unlimited debate; in the House, debate is ruthlessly circumscribed. There is frequent discussion as to which technique most effectively frustrates democratic process. However, a more important antidote to American democracy is American gerontocracy. The positions of eminence and authority in Congress are allotted in accordance with length of service, regardless of quality. Superficial observers have long criticized the United States for making a fetish of youth. This is unfair. Uniquely among modern organs of public and private administration, its national legislature rewards senility.

Source: General and industrial management, 1919/1949, p. 42-43 cited in: John B. Miner (2006) Historical Origins, Theoretical Foundations, And the Future. p. 114

What I've Learned (July 2002)

On evolution, The Rush Limbaugh Show, May 19 2009 http://www.rushlimbaugh.com/home/daily/site_051909/content/01125104.guest.html
Grassé, Pierre Paul (1977); Evolution of living organisms: evidence for a new theory of transformation. Academic Press, p. 3
Evolution of living organisms: evidence for a new theory of transformation (1977)

"A Brief Introduction to the Work of Krishnamurti" http://www.krishnamurtiaustralia.org/articles/bohm_introduction.htm
Quoted in Classic Essays on Twentieth-Century Music, ISBN 0028645812.
Source: After the Cataclysm: Postwar Indochina and the Reconstruction of Imperial Ideology, with Noam Chomsky, 1979, pp. 139-140.