John Campbell John Campbell is Willis S. and Marion Slusser Professor of Philosophy at the University of California, Berkeley. He has held Guggenheim and NEH Fellowships and served as President of the European Society for Philosophy and Psychology. Campbell is theauthor of Past, Space and Self (1994), Reference and Consciousness (2002), Berkeley's Puzzle, co-authored with Quassim Cassam (2012) and Causation in Psychology (2020). Read More Read Less