The auditory perception is not sufficient for our knowledge of the world; it does not have vastness.
Robert DelaunayLight comes to us by the sensibility. Without visual sensibility there is no light, no movement.
Robert DelaunayBut what I attach great importance to is observation of the movement of colors. It is only in this way that I have found the laws of complementary contrast and the simultaneity of those colors that nourish the rhythm of my vision. There I find the representative essence — which does not arise from a system or an a priori theory.
Robert Delaunay