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1920's
                                    
            Quote from Mondrian's letter to Rudolf Steiner, c. 1921-23; as cited in Abstract Painting, Michel Seuphor, Dell Publishing Co 1964, p. 83-85 
1920's
        
                                        
                                        Quote in Mondrian's letter to Rudolf Steiner, c. 1921-23; as cited in Abstract Painting, Michel Seuphor, Dell Publishing Co 1964, p. 83-85 
1920's
                                    
                                        
                                        Mondrian refers to André Gide's 'Dada', in 'Nouvelle Revue Francaise', 1 April 1920 
As quoted  by the editors of 'The New Art – The New Life', op. cit. (Intro., note 1), p. 395, note 8 
1920's
                                    
                                        
                                        Quote of Mondrian in a letter to Van Doesburg, 4 Dec. 1927; 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. 27 
Mondrian's answer to Theo van Doesburg's retrospective article in 'De Stijl' magazine in 1929, where he wrote: 'By the lively and most articulate evolution the principles, developed mainly by P. Mondriaan in 'De Stijl' could not any longer be considered as generally characteristic of the opinion of the group.' 
1920's
                                    
                                        
                                        Quote of De Kooning from an interview (March 1960) with David Sylvester, edited for broadcasting by the BBC first published in 'Location', Spring 1963; as quoted in Interviews with American Artists, by David Sylvester; Chatto & Windus, London 2001, p. 49 
1960's
                                    
“I very much like Arp's things. I consider him the only 'pure' artist after Neo/Plasticism.”
                                        
                                        In a letter to his friend architect Alfred Roth, 19 November 1931; as quoted in Mondrian, - The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 204 
1930's
                                    
                                        
                                        Quote of van Doesburg, in van 'Painting and plastic art': Elementarism – fragment of a manifesto' Paris, December 1926 – April 1927; in De Stijl, Theo van Doesburg – series XIII, 78, 1926–27, pp. 82–87 
1926 – 1931
                                    
                                        
                                        As quoted  by the editors of 'The New Art – The New Life', op. cit. (Intro., note 1), p. 395, note 8 
1920's
                                    
                                        
                                        In a letter to Rudolph Steiner, c. 1921-23; as quoted in Abstract Painting, Michel Seuphor, Dell Publishing Co., 1964, p. 85 
1920's
                                    
                                        
                                        Quote in: 'De Jazz en de Neo-plastiek', Piet Mondriaan, in 'i 10', 1927 pp. 421-427 
1920's
                                    
                                        
                                        In a letter to Theo van Doesburg, Paris 1920; as quoted in Mondrian, - The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 17 
1920's
                                    
 
                            
                        
                        
                        