
In 'Neo-Plasticism: Home – Street – City', Piet Mondriaan, 'i 10', Jan. 1927
1920's
Quote of Mondrian in a letter to H. P. Bremmer, Paris 29 January 1914; ; as cited in Mondrian, - The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 81
1910's
In 'Neo-Plasticism: Home – Street – City', Piet Mondriaan, 'i 10', Jan. 1927
1920's
[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
Interview in Modern Artists in America, First Series (1952), ed. R. Motherwell, Ad Reinhardt, and B. Karpel, p. 19, 39
1950s
quote about the growing controversy between Mondrian and Van Doesburg. concerning the use of diagonal lines
Source: quote from a letter of Mondrian to Theo van Doesburg, undated, c. May 1918; as cited in Mondrian, -The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 120
La verticale est dans mon esprit. Elle m'aide à préciser la direction des lignes, et dans mes dessins rapides je n'indique pas une courbe, par exemple, celle d'une branche dans un paysage, sans avoir conscience de son rapport avec la verticale.
Mes courbes ne sont pas folles.
1940s, Jazz (1947)
Quote from 'Grundbegriffe der neuen Gestaltenden Kunst', essay by Van Doesburg (published between 1921-23 in De Stijl) - last Chapter; as quoted in 'Fifty Years of Accomplishment, From Kandinsky to Jackson Pollock', by Michel Seuphor, Dell Publishing Co. 1964, p. 86
1920 – 1926
Source: Quote of Mondrian about 1914-1918; in 'Mondrian, Essays' ('Plastic art and pure plastic art', 1937 and his other essays, (1941-1943) by Piet Mondrian; Wittenborn-Schultz Inc., New York, 1945, p. 10; as cited in De Stijl 1917-1931 - The Dutch Contribution to Modern Art, by H.L.C. Jaffé http://www.dbnl.org/tekst/jaff001stij01_01/jaff001stij01_01.pdf; J.M. Meulenhoff, Amsterdam 1956, p. 43
Spirit has arrived at the age of maturity...
Quote in 'Comments on the basic of concrete painting', Paris, January 1930, in 'Art Concret', April 1930, pp. 2–4
1926 – 1931