
Duchamp's stated premise for his art-work: '3 Standard stoppages' he made during 1913 -1914; ; as quoted in Looking at Dada, eds. Sarah Ganz Blythe & Edward D. Powers - The Museum of Modern Art New York, ISBN: 087070-705-1; p. 50
1915 - 1925
Cubism was born
Duchamp's stated premise for his art-work: '3 Standard stoppages' he made during 1913 -1914; ; as quoted in Looking at Dada, eds. Sarah Ganz Blythe & Edward D. Powers - The Museum of Modern Art New York, ISBN: 087070-705-1; p. 50
1915 - 1925
[on his two paintings 'Sea' and ' Trees', both made in 1912 https://upload.wikimedia.org/wikipedia/commons/6/65/Trees%2C_1912%2C_Mondrian.jpg
note in his sketchbook, undated but c. 1912; as quoted in Mondrian, - The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 70
1910's
“5519. What the Eye sees not, the Heart rues not.”
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)
“She turned towards me and narrowed her eyes… narrowed them horizontally, not vertically.”
In 'Neo-Plasticism: Home – Street – City', Piet Mondriaan, 'i 10', Jan. 1927
1920's
a remark on the art of Sophie Taeuber, whom he later married.
in Abstract Painting Michel Seuphor, Dell Publishing Co., 1964, p. 58
1960s
“The straight line belongs to Man. The curved line belongs to God.”
The real author seems to be Pierre Albert-Birot https://books.google.com/books?id=3Ul51CwjUOcC&pg=PA290&dq=%22the+curved+line+that+belongs+let%27s+say+to+God+and+the+straight+line+that+belongs+to+man%22&hl=de&sa=X&redir_esc=y#v=onepage&q=%22the%20curved%20line%20that%20belongs%20let%27s%20say%20to%20God%20and%20the%20straight%20line%20that%20belongs%20to%20man%22&f=false.
Attributed
James describing what Orbs are.
Source: Levin, Ken (February/March 2004). "Orbs Come Out to Play", UFO Magazine 19 (1): 39
“A circle is a round straight line with a hole in the middle.”
Quoting a schoolchild in "English as She Is Taught"