  Of course, William was also strongly influenced by Christian thinkers. In particular, his writings are permeated by the thought of Saint Augustine, whom William refers to as “one of the more noble of Christian thinkers,” if perhaps in a less obvious way than by the thought of Avicenna. Indeed, as the list in Valois 1880, 198–206, attests, William employs a remarkable range of sources and must be reckoned one of the most well-read thinkers of his day.