Hans Küng is a Swiss Catholic priest, controversial theologian, and prolific author. Since 1995 he has been President of the Foundation for a Global Ethic (Stiftung Weltethos). Küng is “a Catholic priest in good standing”, but the Vatican has rescinded his authority to teach Catholic theology. He had to leave the Catholic faculty, but remained at the University of Tübingen as a professor of ecumenical theology, serving as an emeritus professor since 1996.