Douglas C. Long

The traditional analysis of substances in terms of qualities which are supported by a "substratum" was rejected by conscientious empiricists like Berkeley, Hume and Russell on the grounds that only qualities, not the substratum, could be experienced. To these philosophers the proper alternative seemed obvious. One simply eliminates the "unknowable" element in which qualities are alleged to inhere. In Russell's words, "What would commonly be called a 'thing' is nothing but a bundle of coexisting qualities such as redness, hardness, etc."' But this empiricist formula has difficulties of its own, and some philosophers have attempted to develop other views of particulars which avoid the errors of the Substratum Doctrine on the one hand and the Bundle-of¬Qualities Theory on the other.2 Discussions of what this third alternative might be have generally approached the question through an examination of the epistemologically suspect concepts of a substratum and its close relative, the concept of a "bare particular". The concept of a quality of something, because it seemingly presents no epistemological difficulties, has attracted much less critical attention. This imbalance in critical interest is unfortunate, however, for a close scrutiny of this latter concept, especially in its role as the key element in the "bundle" analysis of particulars, throws a great deal of light on the relation between particulars and their attributes.