"The Square Tube Series D", 1967, Charlotte Posenenske (1930 - 1985), Tate Modern, London
"The things I make / are variable / as simple as possible / reproducible. They are Components of space, since they are like / building elements, / they can always be rearranged into new combinations or positions / thus, they alter the space. / I leave this alteration to the consumer who thereby again and anew participates in the creation."
Charlotte Posenenske published this Text in Art International, 1968, befor she gave up her art practice to study sociology.