 Burley concludes this first part of his discussion, devoted to the analysis and refutation of the opinions of Aquinas and Ockham, with a remark concerning the way in which general concepts are structured and related one to another. He presents a categorization of the different types of knowledge and reappraises to some extent the role of definition in knowledge. Burley affirms that the more universal concepts are not closely connected with less universal concepts; they do not form a logically or essentially ordered (essentialiter ordinata) series. Definition provides us with better knowledge of a thing than the knowledge we acquire from the mere apprehension of its name; nevertheless, the simple cognition which derives from the confused and indistinct knowledge of the nominal notion of a given thing is sufficient for all practical purposes, and prior by origin to the knowledge which results from its definition, as what is more simple is prior to what is less simple. Thus, for Burley, we first grasp the meaning of simple terms and then that of composite expressions such as definitions. However, from the point of view of quantity of information or exhaustiveness, the most perfect definition (perfectissima definitio), i.e., the definition enumerating all four causes of the definiendum and not just its proximate genus (material cause) and specific difference (formal cause), is superior to any other form of knowledge (fol. 6rb). 