Attributed by Lee Krasner (1964) in " Oral history interview with Lee Krasner, 1964 Nov. 2-1968 Apr. 11 http://www.aaa.si.edu/collections/oralhistories/transcripts/krasne64.htm", interview with Dorothy Seckler for the Smithsonian Institution Archives of American Art.
In Krasner's words: 'When I brought Hofmann up to meet Pollock and see his work which was before we moved here, Hofmann's reaction was — one of the questions he asked Jackson was, do you work from nature? There were no still lifes around or models around and Jackson's answer was, 'I am nature.' And Hofmann's reply was, 'Ah, but if you work by heart, you will repeat yourself.' To which Jackson did not reply at all.'
in posthumous publications