 Much of Book I involves presentation of familiar suggestions which make only part of Bradley’s case: he alleges, for example, that motion involves paradoxes, and that primary qualities alone cannot give us reality, for they are inconceivable without secondary qualities, and that the notion of the thing-in-itself is self-contradictory, for if we really know nothing about it, then not even that it exists. But Chapters II and III — respectively entitled ‘Substantive and Adjective’ and ‘Relation and Quality’, are uniquely Bradleian, alarming in the breadth of their implications, and have caused intermittent controversy ever since. In generalized form, Bradley’s contention is that relations (such as greater than) are unintelligible either with or without terms, and, likewise, terms unintelligible either with or without relations. Bradley himself says of the arguments he wields in support of this contention (p. 29),