  Textual considerations and direct appeals to Aristotle’s authority play a much bigger role in early medieval debates than they do in the high and later Middle Ages, when literal commentary was no longer the dominant form of philosophical literature. Nonetheless, these sorts of considerations continue to be important throughout the Middle Ages. Even Ockham, in his Summa logicae, addresses the issue of whether Aristotle should be interpreted as holding some form of non-reductive realism: