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1926 – 1931
                                    
            refering to his art-gift Jorn made the Mmseum Jorn (1962); as quoted in Silkeborg Kunstmuseum — Jorn Samling by Troels Andersen (1973) 
1959 - 1973, Various sources
        
                                        
                                        Quote in his article 'Elementarism', as cited in De Stijl – Van Doesburg Issue, January 1932, pp. 17–19 
1926 – 1931
                                    
Source: 1925 - 1940, Unpublished notes' for 'The Sculptor Speaks' (1937), pp. 112-113
                                        
                                        1970 and later 
Source: 'The Sunday Times', 25 May 1975; as quoted in Henry Moore writings and Conversations, ed. Alan Wilkinson, University of California Press, California 2002, p. 121
                                    
                                        
                                        In an interview with w:David Sylvester (1960), edited for BBC broadcasting: first published in 'Living Arts', April 1964; as quoted in Interviews with American Artists, by David Sylvester; Chatto & Windus, London 2001, p. 8 
1960s
                                    
                                        
                                        Original: La tua esistenza emana una luce intensa che illumina tutto ciò che mi circonda. Il tuo sorriso: contagioso e spontaneo, mi dona armonia e vitalità. La tua essenza è un'opera d'arte. 
Source: prevale.net
                                    
                                        
                                        Quote of Mondrian, 1914 from Wikipedia; as cited by Michel Seuphor, in 'Piet Mondrian: Life and Work;Abrams, New York, 1956, p. 117 
1910's
                                    
Source: 1870s - 1880s, The Writings of a Savage (1996), pp. 5 & 22: Gauguin is advising a fellow painter, 1885
                                        
                                        Quote from van Doesburg's article: 'Great Masters of Art' in Dutch art-magazine Eenheid no. 357, 7 April 1917 
with elementary plastic art Van Doesburg meant an art without representation (mimetic) any longer] 
1912 – 1919
                                    
 
                            
                        
                        
                         
                            
                        
                        
                         
                            
                        
                        
                        