Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
Death of the Virgin (van der Goes) 1480 when van der Goes began to excitedly talk about how he was a doomed, lost soul and attempted to commit suicide and had to be forcibly held down. This account greatly added to the painting's value in the eyes of late-19th-century painters. Vincent van Gogh mentions van der Goes three times in his letters, first in 1873 to his brother Theo, and on two more occasions when he wrote that he identified with the portrait of van der Goes in Emile Wauters's emotionally rendered 1872 painting "Hugo van der Goes Undergoing Treatment at the Red Cloister". Art historian Erwin