“The medium is as unimportant as I myself. Essential is only the forming... I take any material whatsoever if the picture demands it. When I adjust materials of different kinds to one another, I have taken a step in advance of mere oil painting, for in addition to playing off color against color, line against line, form against form etc., I play off material against material, wood against sack clothes.”
Schwitters (1921) in: Abstract Art, Anna Moszynska, Thames and Hudson, London 1990, p. 68-69.
1920s
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Kurt Schwitters 32
German artist 1887–1948Related quotes
Source: Color, Format and Abstract Art' (1977), pp. 99 – 105

Gilbert Perlein and Bruno Cora, Yves Klein: Long live the Immaterial, Delano Greenidge Edition, New York, 2001. p. 74
from posthumous publications

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[Seismology and plate tectonics, 1990, http://books.google.com/books?id=tZRxPzwoChIC&pg=PA12] (p. 12)
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Interview (January 1965?)
By any means necessary: speeches, interviews, and a letter (1970)
Context: I am not a racist. I am against every form of racism and segregation, every form of discrimination. I believe in human beings, and that all human beings should be respected as such, regardless of their color.

“Ought charges of materialism to be brought against him who points out that regularity?”
Preface of M. Quetelet
A Treatise on Man and the Development of His Faculties (1842)
Context: I have always comprehended with difficulty... how persons pre-occupied doubtless by ideas, have seen any tendency to materialism in exposition of a series of facts deduced from documents. In giving to my work the title of Physics, I have had no other aim than to collect, in uniform order, the phenomena affecting man, nearly as physical science brings together the phenomena appertaining to the material world. If certain facts present themselves with an alarming regularity, to whom is blame to be ascribed? Ought charges of materialism to be brought against him who points out that regularity?