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
Hugo van der Goes a Grand Medal at the Paris salon. In 1873 the Dutch painter Vincent van Gogh mentioned Wauters' painting in a letter to his brother Theo van Gogh. On two further occasions van Gogh likened his own appearance to that of van der Goes as recreated by Wauters, and stated that he identified emotionally with the 15th-century painter. Attribution of his work has been difficult for art historians. Many works, which in the early to mid 20th century were believed to be by his hand, are now accepted to be copies by members of his workshop or by followers. In the