Yves Klein

1.
IKB 191

From the reactions of the audience, [Klein] realized that...viewers thought his various, uniformly colored canvases amounted to a new kind of bright, abstract interior decoration. Shocked at this misunderstanding, Klein knew a further and decisive step in the direction of monochrome art would have to be taken...From that time onwards he would concentrate on one single, primary color alone: blue.

2.

La spécialisation de la sensibilité à l’état matière première en sensibilité picturale stabilisée, Le Vide:

Recently my work with color has led me, in spite of myself, to search little by little, with some assistance (from the observer, from the translator), for the realization of matter, and I have decided to end the battle. My paintings are now invisible and I would like to show them in a clear and positive manner, in my next Parisian exhibition at Iris Clert's