In New York, Morris began to explore the work of Marcel Duchamp, making conceptual pieces such as "Box with the Sound of its Own Making" (1961) and "Fountain" (1963).
В Нью-Йорке Моррис начал изучать творчество Марселя Дюшана, создавая произведения, которые непосредственно обращались к работам Дюшана — "Box with the Sound of its Own Making" (1961), "Fountain" (1963).