I want to take as the canvas for my next picture the entire surface of France. This picture will be called 'The Blue Revolution'. It isn't the fact of my taking power in France that interests me, but rather the possibility of creating a monochrome picture in my new manner: 'The Refinement of Sensibility'.
In 1958; p. 43 - "Yves Klein, 1928 – 1962, Selected Writings"