Marc completed training in Curative Education in Camphill Perceval, Switzerland, before moving to Camphill Village in Copake, NY. He has worked as a teacher, farmer, bookbinder, homemaker and a gardener. He is a mentor gardener for the North American Biodynamic Apprenticeship Program and has a particular interest in forming spaces of encounter between human and nature. In this context he has taught and served as a consultant in Vietnam. He has been on the Core Faculty of the Social Therapy Program in Copake since 2008 and is responsible for various courses on general Anthroposophy and art, the senses, phenomenology, the life phases, organizational development, drama and clay. He also serves as a member of the Collegium of the Camphill Academy.