Perspective and Impressionism were tentative attempts to deal with the world of appearance because of a fear to look inside. Cubism is structure and order. Now both epidermis and order are no longer possible.... The accidental aspects of Impressionist composition are to be understood as a reaction. And the reaction of Cézanne is to be seen as a response to Impressionism. One cannot simply disregard Impressionism. As a dialectic antithesis it was important. The Impressionists had the idea of dissolution; they wanted to represent light, not bodies and not shadows, but light for itself. Frequently I find this tedious, but there is an idea behind it: Atomization is a modern idea..

(1986) 'Structures are no longer valid', in "Ein Gespräch..."