His primary sculptural work is "The Representative of Humanity" (1922), a nine-meter high wood sculpture executed as a joint project with the sculptor Edith Maryon. This was intended to be placed in the first Goetheanum. It shows a central human figure, the "Representative of Humanity," holding a balance between opposing tendencies of expansion and contraction personified as the beings of Lucifer and Ahriman. It was intended to show, in conscious contrast to Michelangelo's Last Judgment, Christ as mute and impersonal such that the beings that approach him must judge themselves. The sculpture is now on permanent display at the Goetheanum.