Wij wezen allles wat kopie of beschrijving was af en lieten het elementaire en het spontane in volle vrijheid reageren. Omdat de plaatsing van de vlakken en de kleuren en de verhoudingen van deze vlakken louter op toeval schenen te berusten, verklaarde ik dat deze werken, zoals in de natuur, gerangschikt waren "volgens de wetten van het toeval", toeval dat voor mij alleen maar een beperkt onderdeel vormde van een onpeilbare reden van bestaan, van een orde die in zijn totaliteit ontoegankelijk was.

A painting or sculpture not modelled on any real object is every bit as concrete and sensuous as a leaf or a stone... but it is an incomplete art which privileges the intellect to the detriment of the senses.

We attempted perfection; we wanted an object to be without flaw, so we cut the papers with a razor, pasted them down meticulously, but it buckled and was ruined... that is why we decided to tear prewrinkled paper, so that in the finished work of art imperfection would be an integral part, as if at birth death were built in.

We do not wish to imitate nature, we do not wish to reproduce. We want to produce. We want to produce the way a plant produces its fruit, not depict. We want to produce directly, not indirectly. Since there is not a trace of abstraction in this art we call it concrete art.

Since the time of the cavemen, man has glorified himself, has made himself divine, and his monstrous vanity has caused human catastrophe. Art has collaborated in this false development. I find this concept of art which has sustained man's vanity to be loathsome.

Artists should work together like the artists of the Middle Ages.

Ever since my childhood, I was haunted by the search for perfection. An imperfectly cut paper literally made me ill. I would guillotine it.