ABSTRACT
The Dutch architect Aldo van Eyck wrote the Tree-Leaf Statement in 1961, as a visiting professor at Washington University. Contrary to what it may seem, the words were in fact a declaration against the direct analogy of tree-city, since Van Eyck rejected the use of tree hierarchies within the urbanism of his time. “The tree analogy fails altogether [ … ] direct analogy leads nowhere, neither to the idea of the tree nor of the city.” Instead, Van Eyck proposed a kaleidoscopic poetic image that succeeded in capturing the deep meaning of his own urban thinking, which he called the configurative discipline. However, the tree-leaf metaphor also resulted in a strong dispute within Team 10 that caused an important shift in Van Eyck's career, who subsequently limited himself to exploring the intrinsic quality of architectural space and abandoned large-scale projects. We propose in this article that this event demonstrates the power and danger of metaphors as poetic images that grow in-between fields, and that can yield incredible transformative powers.
