History of painting group's theories. Next to van Doesburg, the group's principal members were the painters Piet Mondrian, Vilmos Huszár, and Bart van der Leck, and the architects Gerrit Rietveld, Robert van 't Hoff, and J. J. P. Oud. The artistic philosophy that formed a basis for the group's work is known as "neoplasticism" — the new plastic art (or "Nieuwe Beelding" in Dutch). Proponents of De Stijl sought to express a new utopian ideal of spiritual harmony and order. They advocated pure abstraction and universality by a reduction to the essentials of form and colour; they simplified visual compositions to the vertical
Piet van der Walt Piet van der Walt Piet Jacobus van der Walt (born 14 January 1966 in Okahandja) is a Namibian businessperson and politician who has been the Deputy Minister of National Planning since 2018. Van der Walt grew up in Okahandja and went to primary school there. His secondary school was the Higher Technical School in Windhoek. He became a diesel mechanic by profession, graduating in 1989 from the Windhoek Technical College. He also holds an engineering diploma in mechanical drawing and machines and properties of metals. Commenting on his alleged service for "Koevoet", the counter-insurgency branch of the South West African