Which architect associated with organic architecture made it his personal philosophy?

The architect closely associated with organic architecture, who made it his personal philosophy, is Frank Lloyd Wright. Organic architecture is characterized by a harmonious relationship between the built environment and its natural surroundings, emphasizing the integration of structures with the landscape.

Wright believed that buildings should grow naturally from their sites, reflecting their environment and the needs of the inhabitants. He advocated for designs that were not only functional but also aesthetically pleasing, aiming to create spaces that resonated with the natural world. His notable works, such as Fallingwater and the Guggenheim Museum, exemplify his principles of organic architecture by using materials from the surroundings and designing forms that are often inspired by nature.

In contrast, while Louis Sullivan is known for his emphasis on functional design and the phrase "form follows function," he is not primarily classified under organic architecture. Alvar Aalto incorporated some organic elements into his designs, but his work also spans a range of styles and philosophies beyond just organic architecture. Peter Eisenman is better known for his theoretical approach and deconstructivist style, focusing on abstract forms rather than the organic integration Wright championed.