Dinner during the “Vision in Motion – Motion in Vision” exhibition at the Hessenhuis, Antwerp, on 21 March 1959. From left to right: Margret Mack, Heinz Mack, Otto Piene, Jean Tinguely, Daniel Spoerri, Pol Bury, Yves Klein and the poet Emmett Willia
"This is why, at the Hessenhuis in Anvers, in a group show with BREER, BURY, MACK, MUNARI, UECKER, PIENE, ROT, SOTO, SPOERRI and TINGUELY, I did not even want to paint one or several walls nor make any kind of figurative gesture, sweep or brush the walls with even a dry, paintless brush. NO, I simply restrained myself to presenting myself at the exhibition space on the day of the opening, announcing to everyone, in the space that was reserved for me: FIRST THERE IS NOTHING, THEN THERE IS A DEEP NOTHING, THEN THERE IS A BLUE DEPTH. (G. BACHELARD). At present I no longer wish that anyone purchase my work for money. I have asked, for my three pictorial states exhibited, a quantity of pure GOLD. One kilo of GOLD for each work. There it is, cut and dried at last … at last for the moment; afterwards we shall see what follows, which will not be long in coming."
Yves Klein, excerpt from « Overcoming the problematics of Art », 1959, Overcoming the problematics of Art -The writings of Yves Klein, Spring Publications, 2007, p. 55