Manfred Frank, Professor of Philosophy, Emerit., Dr. Dres. h.c. Professor of Philosophy, Eberhard Karls Universität, Tübingen, Germany.
Kenneth Williford, Professor and Chair, Department of Philosophy,UT Arlington, Arlington, United States of America.
Marc Borner, Dr., Department of Psychiatry and Psychotherapy at the Charité Campus Mitte, Charité Universitätsmedizin, Berlin, Berlin, Germany.