His own studies, in the renaissance humanist tradition, had led him to preach against injustices and hierarchies in the Church already in 1516 while he was still a priest in Einsiedeln.
Studinya sendiri, dalam tradisi renaisans humanis, membuatnya berkhotbah melawan ketidakadilan dan hierarki Gereja yang telah ada pada tahun 1516; saat dia masih menjadi imam di Einsiedeln.