The soul-body problem was among the most controversial issues discussed in thirteenth-century Europe, and it continues to capture much attention today as the quest to understand human identity becomes more and more urgent. What made the discussion about this problem particularly interesting in the scholastic period was the tension between the traditional dualist doctrines and a growing need to affirm the unity of the human being. This debate is frequently interpreted as a conflict between the "new" philosophy, conveyed by the rediscovered works of Aristotle and his followers, and doctrinal...