Tooting, howling, screeching, booming, crashing, whistling, grinding, and trilling bolster his [mankind's] ego. His anxiety subsides. His inhuman void spreads monstrously like a gray vegetation.

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.

Soon silence will have passed into legend. Man has turned his back on silence. Day after day he invents machines and devices that increase noise and distract humanity from the essence of life, contemplation, meditation.

Zurich in 1915,... While the thunder of the batteries rumbled in the distance, we pasted, we recited, we versified, we sang with all our soul. We searched for an elementary art that would, we thought, save mankind from the madness of these times.

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.

I allow myself to be guided by the work which is in the process of being born. I have confidence in it. I do not think about it.

The essence of a sculpture must enter on tip-toe, as light as animal footprints on snow.