Shao Kai (“Alex”) Tseng (MDiv, Regent College; ThM, Princeton Theological Seminary; MSt, DPhil, University of Oxford) is research professor in the philosophy department at Zhejiang University in Hangzhou, China. He is the author of Karl Barth’s Infralapsarian Theology and Barth’s Ontology of Sin and Grace as well as a critique of G. W. F. Hegel in this series, and a contributor to the Oxford Handbook of Nineteenth- Century Christian Thought.