Colour Quotes - page 19
[In a later footnote, he explains further:] "children can never be upbraided with their having had a felon for a father: whereas the descendants of a white person, married to a black one, would, for many generations, by their complexion, proclaim their origin. Accordingly, though many mulattoes and people of colour have obtained wealth, I remember no instance, in any European colony, of their having obtained rank."
Jonathan Boucher
We speak of concrete and not abstract painting because nothing is more concrete, more real then a line, a colour, a surface. A woman, a tree, a cow; are these concrete elements in a painting? No. A woman, a tree and a cow are concrete only in nature; in painting they are abstract, illusionistic, vague and speculative. However, a plane is a plane, a line is a line and no more or no less than that. 'Concrete paintin.
Theo van Doesburg