“Simplicity is the ultimate sophistication” - Leonardo Da Vinci
This well known maxim has been the basis of design principles for many successful industrial designers and architects. Simplicity often denotes beauty, purity and clarity (of thought in the design context). Simple buildings are neat and functional, using minimalistic elements which are showcased in their honest form.
Another popular maxim “Less is more” has been the design philosophy of famous architect Ludwig Mies van der Rohe. By emphasizing open space and revealing the industrial materials used in construction, he helped define modern architecture. His mature buildings made use of modern materials such as industrial steel and plate glass to define interior spaces. He strived towards an architecture with a minimal framework of structural order balanced against the implied freedom of free-flowing open space. He called his buildings "skin and bones" architecture. He sought a rational approach that would guide the creative process of architectural design.
Another great architect, Frank Lloyd Wright believed in designing structures which were in harmony with humanity and its environment, a philosophy he called organic architecture. This philosophy was best exemplified by his design for Fallingwater (1935), which has been called "the best all-time work of American architecture". His simplistic approach can be summarized in a quote by him, “Simplicity and repose are the qualities that measure the true value of any work of art.”