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            Quote (1908), # 808, in The Diaries of Paul Klee; University of California Press, 1964; as quoted by Francesco Mazzaferro, in 'The Diaries of Paul Klee - Part Three'  : Klee as a Secessionist and a Neo-Impressionist Artist http://letteraturaartistica.blogspot.nl/2015/05/paul-klee-ev.html 
1903 - 1910
        
Source: 1940 - 1960, Les frères Van Gogh, origine et justification', c. 1955, pp. 67-69
                                        
                                        To which the answer is, I would have thought, boring, bordering on pointless. 
Think Like an Artist (2015)
                                    
                                        
                                        version in original Dutch, Weissenbruch tegen Anton Mauve: Hij teekent verdomd goed, ik zou naar zijn studies kunnen werken. 
a remark to Anton Mauve, who asked Weissenbruch to visit Vincent van Gogh and see his work 
Source: J. H. Weissenbruch', (n.d.), p. 44, note 1
                                    
“I have Van Gogh's ear for music”
"Heil und Heilung - Theologie und Psychoanalyse," speech at a conference of therapists in Basel, Switzerland (1977-05-21)
                                        
                                        two quotes, 16 July 1970; p. 77 
1970's, Conversations with Samuel Beckett and Bram van Velde (1970 - 1972)
                                    
Van Gogh, the Man Suicided by Society (1947)
 
                            
                        
                        
                         
                            
                        
                        
                         
                            
                        
                        
                        