Xiong Shili 熊十力 (1885–1968) was one of the most influential Chinese philosophers of the twentieth century. He is generally considered a founding figure of New Confucianism. Xiong's metaphysics focussed mainly on the concepts of Reality (ti 體) and Function (yong 用), one of the key conceptual polarities in traditional Chinese philosophy. His mature philosophical system of Reality and Function was established in the early 1930s. In this seminar, I will introduce Xiong's understanding of Reality and Function between 1920 and 1937. I will pay particular attention to how Xiong's thought changed during this period, and to the sources on which he drew to elucidate his ideas.