opacity and transparency, solid and void, structure and surface -R Meier

http://www.architecturaldigest.com/architecture/2013-05/architect-richard-meier-interview-article

AD: Why has white been such a presence in your work?

RM: Whiteness allows the architectural ideas to be understood most clearly—the difference between opacity and transparency, solid and void, structure and surface. These things are more perceptible in a white environment. They have a greater clarity.