Prof. (ret.) at the Department of Philosophy, Tel Aviv University. He has published in the fields of medieval Arabic philosophy, conflicts in Islamic culture, and Trust in Arabic-speaking Islam. Among his books 1. Socrates in Medieval Arabic Literature, Leiden: Brill and Jerusalem: Magnes Press, 1991 (198 p). 2. Socrates Arabus, Jeursalem, The Hebrew University Institute of Asian and African Studies, 1995, (413 pp). 3. with S. Abed., Al-FÁrÁbÐ's Philosophical Lexicon, Cambridge, The Gibb Memorial Trust, 2008, 2 vols. (1100 pages) 4. with Daniel Bar-Tal (Eds.) The Role of Trust in Conflict Resolution The Israeli-Palestinian Case and Beyond. Springer, 2017.