“Marking Infinity”, Lee Ufan’s recent retrospective exhibition at the Guggenheim charts the artist’s creation of a visual, conceptual, and theoretical language that has radically expanded the possibilities for sculpture and painting over the past forty years. Deeply versed in modern philosophy, Lee is also an influential writer and is recognized as the key theorist of Mono-ha, an anti-formalist, materials-based art movement that developed in Tokyo in the late 1960s. Active internationally over the last four decades, Lee is acclaimed for an innovative body of Post-Minimalist work that promotes process and the experiential engagement of viewer and site. Driven by a desire to confront existence through ambiguity, awareness and illusion, Lee’s work is rooted in reaction, encouraging the viewer to have a transcendent encounter with both the piece and themself. In this portrait we follow the artist through his retrospective while he discusses his captivating theory and approach with curators Alexandra Munroe and Mika Yoshitake.