ARNE GRON is cofounder and professor of the Center for Subjectivity Research in Copenhagen. He received his doctorate from the University of Copenhagen and is the author of numerous books and articles. SINEAD LADEGAARD KNOX is a philosopher teaching at universities in Denmark and the US. She is the author of a book on the French philosopher Gabriel Marcel and has written articles on ethics, philosophy of existence, and philosophical practice. She has also translated Jacques Derrida into Danish.