“Nothing is unthinkable, nothing impossible to the balanced person, provided it comes out of the needs of life and is dedicated to life's further development.”
"The Way and the Life"
The Conduct Of Life (1951)
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Lewis Mumford 75
American historian, sociologist, philosopher of technology,… 1895–1990Related quotes

http://www.unm.edu/~hdelaney/cosmoquotes.html, Arno Penzias, quoted by Walter Bradley in "The Designed 'Just-so' Universe", 1999.

“Unacceptable, maybe. But not unthinkable. Nothing's unthinkable once somebody’s thought it.”
Short fiction, Born with the Dead (1974)

reprinted in 'Zero', ed. Otto Piene and Heinz Mack, Cambridge, Mass; MIT Press 1973, p. 120
Quotes, 1960's, untitled statements in 'Zero 3', (1961)

Address on the occasion of the Centenary of Trinity College, Toronto, Ontario, April 17, 1952
Speaking Of Canada - (1959)

Is Divorce Wrong? (1889)
Context: Nothing is said in the Testament about the families of the apostles; nothing of family life, of the sacredness of home; nothing about the necessity of education, the improvement and development of the mind. These things were forgotten, for the reason that nothing, in the presence of the expected event, was considered of any importance, except to be ready when the Son of Man should come. Such was the feeling, that rewards were offered by Christ himself to those who would desert their wives and children. Human love was spoken of with contempt. “Let the dead bury their dead. What is that to thee? Follow thou me.” They not only believed these things, but acted in accordance with them; and, as a consequence, all the relations of life were denied or avoided, and their obligations disregarded.
Quoted in Manauri Jorge, 2012.
ARS Universal Press Conference, Santo Domingo, Dominican Republic, 2012-08-19
“Remember, nothing in life comes labeled, YOU are the labeler.”
Source: Life, the Truth, and Being Free (2010), p. 74