“Science, like art, religion, commerce, warfare, and even sleep, is based on presuppositions. It differs, however, from most other branches of human activity in that not only are the pathways of scientific thought determined by the presuppositions of the scientists but their goals are the testing and revision of old presuppositions and the creation of new.”
Source: Mind and Nature, a necessary unity, 1988, p. 25
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Gregory Bateson 49
English anthropologist, social scientist, linguist, visual … 1904–1980Related quotes

" What’s the best "proof" of creation? http://www.answersingenesis.org/articles/wow/best-proof-of-creation", Answers in Genesis (March 18, 2010)
or if noticed, dismissed as “emotional,” “irresponsible,” etc.
Source: After the Cataclysm: Postwar Indochina and the Reconstruction of Imperial Ideology, with Noam Chomsky, 1979, p. 30.

Interview by Ira Shorr, February 11, 1996 http://www.chomsky.info/interviews/19960211.htm
Quotes 1990s, 1995-1999
The Social History of Art, Volume I. From Prehistoric Times to the Middle Ages, 1999, Chapter II. Ancient Oriental Urban cultures
The Declaration of Independence: A Study in the History of Political Ideas (1922)

Soren Kierkegaard's Journals and Papers, Volume 1 Hong translation 1967 p. 14-15 1 A 101 January 14, 1837
1830s, The Journals of Søren Kierkegaard, 1830s

The Doctrine of Necessity Examined (1892)
Context: When I have asked thinking men what reason they had to believe that every fact in the universe is precisely determined by law, the first answer has usually been that the proposition is a "presupposition " or postulate of scientific reasoning. Well, if that is the best that can be said for it, the belief is doomed. Suppose it be " postulated " : that does not make it true, nor so much as afford the slightest rational motive for yielding it any credence. It is as if a man should come to borrow money, and when asked for his security, should reply he "postulated " the loan. To "postulate" a proposition is no more than to hope it is true. There are, indeed, practical emergencies in which we act upon assumptions of certain propositions as true, because if they are not so, it can make no difference how we act. But all such propositions I take to be hypotheses of individual facts. For it is manifest that no universal principle can in its universality be compromised in a special case or can be requisite for the validity of any ordinary inference.

Source: At Home in the Universe: The Search for the Laws of Self-Organization and Complexity (1996), p.151. as cited in: A. Kay (2006) The Dynamics of Public Policy: Theory and Evidence. p.43