Paul Klee1879–1940- Diary entry (1915), # 951 , in The Diaries of Paul Klee, translation: Pierre B. Schneider, R. Y. Zachary and Max Knight; publisher, University of California Press, 1964
- Diary entry (December 1905), # 733, in The Diaries of Paul Klee, 1898-1918; University of California Press, 1968
Art does not reproduce the visible; rather, it makes visible.
Creative Credo (1920), Section I- Diary entry (Munich, 1909), # 857, in The Diaries of Paul Klee, 1898-1918; University of California Press, 1968, p. 236





