Each superfluous line, each wrongly placed line, any color placed without veneration or care, can spoil everything, that is, the spiritual.
Theo van DoesburgWe speak of concrete and not abstract painting because nothing is more concrete, more real than a line, a color, a surface.
Theo van DoesburgIn place of the dream, the future will put art on a scientific and technical basis.
Theo van Doesburg